10-K Filing

NMI HOLDINGS, INC. CIK: 1547903 FY 2017

Filing Information

Form Type	10-K
Accession Number	`0001547903-18-000038`
Period End Date	20171231
Filing Date	20180216
Fiscal Year	2017
Fiscal Period	FY
XBRL Instance	nmih-20171231.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 70 Income Statement 186 Cash Flow Statement 126 Stockholders Equity 37 Comprehensive Income 6

Balance Sheet 70 line items

Line Item	Tag	Value	Unit	Period
Fixed maturity, amortized cost	`AvailableForSaleDebtSecuritiesAmortizedCostBasis`	$713.86M	USD	Point-in-time
Fixed maturity, amortized cost	`AvailableForSaleDebtSecuritiesAmortizedCostBasis`	$630.69M	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Fixed maturities, available-for-sale, at fair value (amortized cost of $713,859 and $630,688 as of December 31, 2017 and December 31, 2016, respectively)	`AvailableForSaleSecuritiesDebtSecurities`	$715.88M	USD	Point-in-time
Fixed maturities, available-for-sale, at fair value (amortized cost of $713,859 and $630,688 as of December 31, 2017 and December 31, 2016, respectively)	`AvailableForSaleSecuritiesDebtSecurities`	$628.97M	USD	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	59.15M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$47.75M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$19.20M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$57.32M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$103.02M	USD	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	60.52M	shares	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	59.15M	shares	Point-in-time
Premiums receivable	`PremiumsReceivableAtCarryingValue`	$25.18M	USD	Point-in-time
Premiums receivable	`PremiumsReceivableAtCarryingValue`	$13.73M	USD	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	60.52M	shares	Point-in-time
Accrued investment income	`AccruedInvestmentIncomeReceivable`	$4.21M	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	250.00M	shares	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	250.00M	shares	Point-in-time
Accrued investment income	`AccruedInvestmentIncomeReceivable`	$3.42M	USD	Point-in-time
Prepaid expenses	`PrepaidExpenseCurrentAndNoncurrent`	$1.99M	USD	Point-in-time
Prepaid expenses	`PrepaidExpenseCurrentAndNoncurrent`	$2.15M	USD	Point-in-time
Deferred policy acquisition costs, net	`DeferredPolicyAcquisitionCosts`	$30.11M	USD	Point-in-time
Deferred policy acquisition costs, net	`DeferredPolicyAcquisitionCosts`	$37.92M	USD	Point-in-time
Software and equipment, net	`PropertyPlantAndEquipmentNet`	$20.40M	USD	Point-in-time
Software and equipment, net	`PropertyPlantAndEquipmentNet`	$22.80M	USD	Point-in-time
Intangible assets and goodwill	`IntangibleAssetsNetIncludingGoodwill`	$3.63M	USD	Point-in-time
Intangible assets and goodwill	`IntangibleAssetsNetIncludingGoodwill`	$3.63M	USD	Point-in-time
Prepaid reinsurance premiums	`PrepaidReinsurancePremiums`	$40.25M	USD	Point-in-time
Prepaid reinsurance premiums	`PrepaidReinsurancePremiums`	$37.92M	USD	Point-in-time
Deferred tax asset, net	`DeferredIncomeTaxAssetsNet`	$51.43M	USD	Point-in-time
Deferred tax asset, net	`DeferredIncomeTaxAssetsNet`	$19.93M	USD	Point-in-time
Other assets	`OtherAssets`	$542.00K	USD	Point-in-time
Other assets	`OtherAssets`	$3.69M	USD	Point-in-time
Total assets	`Assets`	$839.90M	USD	Point-in-time
Total assets	`Assets`	$894.85M	USD	Point-in-time
Term loan	`LongTermDebt`	$143.88M	USD	Point-in-time
Term loan	`LongTermDebt`	$144.35M	USD	Point-in-time
Unearned premiums	`UnearnedPremiums`	$152.91M	USD	Point-in-time
Unearned premiums	`UnearnedPremiums`	$163.17M	USD	Point-in-time
Accounts payable and accrued expenses	`AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent`	$23.36M	USD	Point-in-time
Accounts payable and accrued expenses	`AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent`	$25.30M	USD	Point-in-time
Reserve for insurance claims and claim expenses	`LiabilityForClaimsAndClaimsAdjustmentExpense`	$679.00K	USD	Point-in-time
Reserve for insurance claims and claim expenses	`LiabilityForClaimsAndClaimsAdjustmentExpense`	$83.00K	USD	Point-in-time
Reserve for insurance claims and claim expenses	`LiabilityForClaimsAndClaimsAdjustmentExpense`	$3.00M	USD	Point-in-time
Reserve for insurance claims and claim expenses	`LiabilityForClaimsAndClaimsAdjustmentExpense`	$8.76M	USD	Point-in-time
Reinsurance funds withheld	`FundsHeldUnderReinsuranceAgreementsLiability`	$30.63M	USD	Point-in-time
Reinsurance funds withheld	`FundsHeldUnderReinsuranceAgreementsLiability`	$34.10M	USD	Point-in-time
Deferred ceding commission	`DeferredRevenue`	$4.83M	USD	Point-in-time
Deferred ceding commission	`DeferredRevenue`	$5.02M	USD	Point-in-time
Warrant liability, at fair value	`WarrantLiability`	$7.47M	USD	Point-in-time
Warrant liability, at fair value	`WarrantLiability`	$3.37M	USD	Point-in-time
Total liabilities	`Liabilities`	$364.39M	USD	Point-in-time
Total liabilities	`Liabilities`	$385.77M	USD	Point-in-time
Commitments and contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Common stock - class A shares, $0.01 par value; 60,517,512 and 59,145,161 shares issued and outstanding as of December 31, 2017 and December 31, 2016, respectively (250,000,000 shares authorized)	`CommonStockValueOutstanding`	$591.00K	USD	Point-in-time
Common stock - class A shares, $0.01 par value; 60,517,512 and 59,145,161 shares issued and outstanding as of December 31, 2017 and December 31, 2016, respectively (250,000,000 shares authorized)	`CommonStockValueOutstanding`	$605.00K	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$576.93M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$585.49M	USD	Point-in-time
Accumulated other comprehensive loss, net of tax	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-5.29M	USD	Point-in-time
Accumulated other comprehensive loss, net of tax	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-2.86M	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-74.16M	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-96.72M	USD	Point-in-time
Total shareholders' equity	`StockholdersEquity`	$509.08M	USD	Point-in-time
Total shareholders' equity	`StockholdersEquity`	$426.96M	USD	Point-in-time
Total shareholders' equity	`StockholdersEquity`	$475.51M	USD	Point-in-time
Total shareholders' equity	`StockholdersEquity`	$402.73M	USD	Point-in-time
Total liabilities and shareholders' equity	`LiabilitiesAndStockholdersEquity`	$894.85M	USD	Point-in-time
Total liabilities and shareholders' equity	`LiabilitiesAndStockholdersEquity`	$839.90M	USD	Point-in-time

Income Statement 186 line items

Line Item	Tag	Value	Unit	Period
Net premiums earned	`PremiumsEarnedNet`	$110.48M	USD	Annual
Net premiums earned	`PremiumsEarnedNet`	$31.81M	USD	1 Quarter
Net premiums earned	`PremiumsEarnedNet`	$19.81M	USD	1 Quarter
Net premiums earned	`PremiumsEarnedNet`	$165.74M	USD	Annual
Net premiums earned	`PremiumsEarnedNet`	$45.51M	USD	Annual
Net premiums earned	`PremiumsEarnedNet`	$50.08M	USD	1 Quarter
Net premiums earned	`PremiumsEarnedNet`	$37.92M	USD	1 Quarter
Net premiums earned	`PremiumsEarnedNet`	$32.83M	USD	1 Quarter
Net premiums earned	`PremiumsEarnedNet`	$33.23M	USD	1 Quarter
Net premiums earned	`PremiumsEarnedNet`	$44.52M	USD	1 Quarter
Net premiums earned	`PremiumsEarnedNet`	$26.04M	USD	1 Quarter
Net investment income	`NetInvestmentIncome`	$4.39M	USD	1 Quarter
Net investment income	`NetInvestmentIncome`	$3.63M	USD	1 Quarter
Net investment income	`NetInvestmentIncome`	$3.91M	USD	1 Quarter
Net investment income	`NetInvestmentIncome`	$3.54M	USD	1 Quarter
Net investment income	`NetInvestmentIncome`	$3.23M	USD	1 Quarter
Net investment income	`NetInvestmentIncome`	$7.25M	USD	Annual
Net investment income	`NetInvestmentIncome`	$16.27M	USD	Annual
Net investment income	`NetInvestmentIncome`	$3.34M	USD	1 Quarter
Net investment income	`NetInvestmentIncome`	$4.17M	USD	1 Quarter
Net investment income	`NetInvestmentIncome`	$13.75M	USD	Annual
Net investment income	`NetInvestmentIncome`	$3.81M	USD	1 Quarter
Net realized investment gains (losses)	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$188.00K	USD	1 Quarter
Net realized investment gains (losses)	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$69.00K	USD	1 Quarter
Net realized investment gains (losses)	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$66.00K	USD	1 Quarter
Net realized investment gains (losses)	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$-693.00K	USD	Annual
Net realized investment gains (losses)	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$65.00K	USD	1 Quarter
Net realized investment gains (losses)	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$61.00K	USD	1 Quarter
Net realized investment gains (losses)	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$9.00K	USD	1 Quarter
Net realized investment gains (losses)	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$-885.00K	USD	1 Quarter
Net realized investment gains (losses)	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$-58.00K	USD	1 Quarter
Net realized investment gains (losses)	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$831.00K	USD	Annual
Net realized investment gains (losses)	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$208.00K	USD	Annual
Other revenues	`OtherSalesRevenueNet`	$195.00K	USD	1 Quarter
Other revenues	`OtherSalesRevenueNet`	$32.00K	USD	1 Quarter
Other revenues	`OtherSalesRevenueNet`	$62.00K	USD	1 Quarter
Other revenues	`OtherSalesRevenueNet`	$185.00K	USD	1 Quarter
Other revenues	`OtherSalesRevenueNet`	$80.00K	USD	1 Quarter
Other revenues	`OtherSalesRevenueNet`	$522.00K	USD	Annual
Other revenues	`OtherSalesRevenueNet`	$25.00K	USD	Annual
Other revenues	`OtherSalesRevenueNet`	$102.00K	USD	1 Quarter
Other revenues	`OtherSalesRevenueNet`	$105.00K	USD	1 Quarter
Other revenues	`OtherSalesRevenueNet`	$276.00K	USD	Annual
Other revenues	`OtherSalesRevenueNet`	$37.00K	USD	1 Quarter
Total revenues	`Revenues`	$123.81M	USD	Annual
Total revenues	`Revenues`	$53.61M	USD	Annual
Total revenues	`Revenues`	$182.74M	USD	Annual
Insurance claims and claims expenses	`IncurredClaimsPropertyCasualtyAndLiability`	$664.00K	USD	1 Quarter
Insurance claims and claims expenses	`IncurredClaimsPropertyCasualtyAndLiability`	$2.37M	USD	1 Quarter
Insurance claims and claims expenses	`IncurredClaimsPropertyCasualtyAndLiability`	$1.37M	USD	1 Quarter
Insurance claims and claims expenses	`IncurredClaimsPropertyCasualtyAndLiability`	$650.00K	USD	Annual
Insurance claims and claims expenses	`IncurredClaimsPropertyCasualtyAndLiability`	$2.39M	USD	Annual
Insurance claims and claims expenses	`IncurredClaimsPropertyCasualtyAndLiability`	$458.00K	USD	1 Quarter
Insurance claims and claims expenses	`IncurredClaimsPropertyCasualtyAndLiability`	$5.34M	USD	Annual
Insurance claims and claims expenses	`IncurredClaimsPropertyCasualtyAndLiability`	$800.00K	USD	1 Quarter
Insurance claims and claims expenses	`IncurredClaimsPropertyCasualtyAndLiability`	$635.00K	USD	1 Quarter
Insurance claims and claims expenses	`IncurredClaimsPropertyCasualtyAndLiability`	$957.00K	USD	1 Quarter
Insurance claims and claims expenses	`IncurredClaimsPropertyCasualtyAndLiability`	$470.00K	USD	1 Quarter
Underwriting and operating expenses	`OtherCostAndExpenseOperating`	$106.98M	USD	Annual
Underwriting and operating expenses	`OtherCostAndExpenseOperating`	$28.05M	USD	1 Quarter
Underwriting and operating expenses	`OtherCostAndExpenseOperating`	$80.60M	USD	Annual
Underwriting and operating expenses	`OtherCostAndExpenseOperating`	$24.04M	USD	1 Quarter
Underwriting and operating expenses	`OtherCostAndExpenseOperating`	$22.67M	USD	1 Quarter
Underwriting and operating expenses	`OtherCostAndExpenseOperating`	$25.99M	USD	1 Quarter
Underwriting and operating expenses	`OtherCostAndExpenseOperating`	$23.23M	USD	1 Quarter
Underwriting and operating expenses	`OtherCostAndExpenseOperating`	$93.22M	USD	Annual
Underwriting and operating expenses	`OtherCostAndExpenseOperating`	$24.64M	USD	1 Quarter
Underwriting and operating expenses	`OtherCostAndExpenseOperating`	$28.30M	USD	1 Quarter
Underwriting and operating expenses	`OtherCostAndExpenseOperating`	$23.28M	USD	1 Quarter
Total expenses	`CostsAndExpenses`	$81.25M	USD	Annual
Total expenses	`CostsAndExpenses`	$112.32M	USD	Annual
Total expenses	`CostsAndExpenses`	$95.61M	USD	Annual
(Loss) gain from change in fair value of warrant liability	`GainLossonChangeinFairValueofWarrantLiability`	$-1.90M	USD	Annual
(Loss) gain from change in fair value of warrant liability	`GainLossonChangeinFairValueofWarrantLiability`	$-1.71M	USD	1 Quarter
(Loss) gain from change in fair value of warrant liability	`GainLossonChangeinFairValueofWarrantLiability`	$-4.11M	USD	Annual
(Loss) gain from change in fair value of warrant liability	`GainLossonChangeinFairValueofWarrantLiability`	$-196.00K	USD	1 Quarter
(Loss) gain from change in fair value of warrant liability	`GainLossonChangeinFairValueofWarrantLiability`	$-59.00K	USD	1 Quarter
(Loss) gain from change in fair value of warrant liability	`GainLossonChangeinFairValueofWarrantLiability`	$-797.00K	USD	1 Quarter
(Loss) gain from change in fair value of warrant liability	`GainLossonChangeinFairValueofWarrantLiability`	$-502.00K	USD	1 Quarter
(Loss) gain from change in fair value of warrant liability	`GainLossonChangeinFairValueofWarrantLiability`	$19.00K	USD	1 Quarter
(Loss) gain from change in fair value of warrant liability	`GainLossonChangeinFairValueofWarrantLiability`	$670.00K	USD	1 Quarter
(Loss) gain from change in fair value of warrant liability	`GainLossonChangeinFairValueofWarrantLiability`	$-3.43M	USD	1 Quarter
(Loss) gain from change in fair value of warrant liability	`GainLossonChangeinFairValueofWarrantLiability`	$1.91M	USD	Annual
Interest expense	`InterestExpense`	$3.63M	USD	1 Quarter
Interest expense	`InterestExpense`	$2.06M	USD	Annual
Interest expense	`InterestExpense`	$3.38M	USD	1 Quarter
Interest expense	`InterestExpense`	$3.30M	USD	1 Quarter
Interest expense	`InterestExpense`	$14.85M	USD	Annual
Interest expense	`InterestExpense`	$13.53M	USD	Annual
Interest expense	`InterestExpense`	$3.78M	USD	1 Quarter
Interest expense	`InterestExpense`	$3.71M	USD	1 Quarter
Interest expense	`InterestExpense`	$3.49M	USD	1 Quarter
Interest expense	`InterestExpense`	$3.35M	USD	1 Quarter
Interest expense	`InterestExpense`	$3.73M	USD	1 Quarter
Total other expense	`OtherNonoperatingIncomeExpense`	$-17.63M	USD	Annual
Total other expense	`OtherNonoperatingIncomeExpense`	$-16.75M	USD	Annual
Total other expense	`OtherNonoperatingIncomeExpense`	$-152.00K	USD	Annual
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$19.50M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$7.06M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$17.06M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$11.45M	USD	Annual
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$6.29M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$2.01M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$9.50M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-3.91M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$6.74M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-27.79M	USD	Annual
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$52.79M	USD	Annual
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	-	USD	1 Quarter
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$3.48M	USD	1 Quarter
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$-52.55M	USD	Annual
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$18.82M	USD	1 Quarter
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	-	USD	Annual
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$1.25M	USD	1 Quarter
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$30.74M	USD	Annual
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$7.18M	USD	1 Quarter
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	-	USD	1 Quarter
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$-52.66M	USD	1 Quarter
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$114.00K	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$6.17M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$64.00M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$59.72M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-27.79M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$6.01M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$5.49M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-1.77M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-3.91M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$12.31M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$22.05M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$2.01M	USD	1 Quarter
Earnings (loss) per share, basic (in dollars per share)	`EarningsPerShareBasic`	$0.09	USD	1 Quarter
Earnings (loss) per share, basic (in dollars per share)	`EarningsPerShareBasic`	$0.03	USD	1 Quarter
Earnings (loss) per share, basic (in dollars per share)	`EarningsPerShareBasic`	$-0.47	USD	Annual
Earnings (loss) per share, basic (in dollars per share)	`EarningsPerShareBasic`	$0.21	USD	1 Quarter
Earnings (loss) per share, basic (in dollars per share)	`EarningsPerShareBasic`	$-0.03	USD	1 Quarter
Earnings (loss) per share, basic (in dollars per share)	`EarningsPerShareBasic`	$1.08	USD	Annual
Earnings (loss) per share, basic (in dollars per share)	`EarningsPerShareBasic`	$0.10	USD	1 Quarter
Earnings (loss) per share, basic (in dollars per share)	`EarningsPerShareBasic`	$0.10	USD	1 Quarter
Earnings (loss) per share, basic (in dollars per share)	`EarningsPerShareBasic`	$0.37	USD	Annual
Earnings (loss) per share, basic (in dollars per share)	`EarningsPerShareBasic`	$1.01	USD	1 Quarter
Earnings (loss) per share, basic (in dollars per share)	`EarningsPerShareBasic`	$-0.07	USD	1 Quarter
Earnings (loss) per share, diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.35	USD	Annual
Earnings (loss) per share, diluted (in dollars per share)	`EarningsPerShareDiluted`	$1.05	USD	Annual
Earnings (loss) per share, diluted (in dollars per share)	`EarningsPerShareDiluted`	$-0.07	USD	1 Quarter
Earnings (loss) per share, diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.10	USD	1 Quarter
Earnings (loss) per share, diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.03	USD	1 Quarter
Earnings (loss) per share, diluted (in dollars per share)	`EarningsPerShareDiluted`	$-0.47	USD	Annual
Earnings (loss) per share, diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.09	USD	1 Quarter
Earnings (loss) per share, diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.98	USD	1 Quarter
Earnings (loss) per share, diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.10	USD	1 Quarter
Earnings (loss) per share, diluted (in dollars per share)	`EarningsPerShareDiluted`	$-0.03	USD	1 Quarter
Earnings (loss) per share, diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.20	USD	1 Quarter
Weighted average common shares outstanding, basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	59.11M	shares	1 Quarter
Weighted average common shares outstanding, basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	59.82M	shares	1 Quarter
Weighted average common shares outstanding, basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	58.68M	shares	Annual
Weighted average common shares outstanding, basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	59.82M	shares	Annual
Weighted average common shares outstanding, basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	59.18M	shares	1 Quarter
Weighted average common shares outstanding, basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	59.88M	shares	1 Quarter
Weighted average common shares outstanding, basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	59.07M	shares	Annual
Weighted average common shares outstanding, basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	60.22M	shares	1 Quarter
Weighted average common shares outstanding, basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	58.94M	shares	1 Quarter
Weighted average common shares outstanding, basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	59.13M	shares	1 Quarter
Weighted average common shares outstanding, basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	59.14M	shares	1 Quarter
Weighted average common shares outstanding, diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	60.22M	shares	1 Quarter
Weighted average common shares outstanding, diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	60.83M	shares	Annual
Weighted average common shares outstanding, diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	63.01M	shares	1 Quarter
Weighted average common shares outstanding, diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	63.09M	shares	1 Quarter
Weighted average common shares outstanding, diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	62.34M	shares	1 Quarter
Weighted average common shares outstanding, diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	59.83M	shares	1 Quarter
Weighted average common shares outstanding, diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	60.28M	shares	1 Quarter
Weighted average common shares outstanding, diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	61.23M	shares	1 Quarter
Weighted average common shares outstanding, diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	58.94M	shares	1 Quarter
Weighted average common shares outstanding, diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	62.19M	shares	Annual
Weighted average common shares outstanding, diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	58.68M	shares	Annual
Net unrealized gains (losses) in accumulated other comprehensive income, net of tax expense of $1,234, $1,178, and $0 for each of the years in the three-year period ended December 31, 2017, respectively	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$2.56M	USD	Annual
Net unrealized gains (losses) in accumulated other comprehensive income, net of tax expense of $1,234, $1,178, and $0 for each of the years in the three-year period ended December 31, 2017, respectively	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-3.52M	USD	Annual
Net unrealized gains (losses) in accumulated other comprehensive income, net of tax expense of $1,234, $1,178, and $0 for each of the years in the three-year period ended December 31, 2017, respectively	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$1.43M	USD	Annual
Reclassification adjustment for realized losses (gains) included in net income, net of tax expense of $73, $0, and $0 for each of the years in the three-years ended December 31, 2017, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax`	$349.00K	USD	Annual
Reclassification adjustment for realized losses (gains) included in net income, net of tax expense of $73, $0, and $0 for each of the years in the three-years ended December 31, 2017, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax`	$131.00K	USD	Annual
Reclassification adjustment for realized losses (gains) included in net income, net of tax expense of $73, $0, and $0 for each of the years in the three-years ended December 31, 2017, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax`	$-758.00K	USD	Annual
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-3.87M	USD	Annual
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$2.19M	USD	Annual
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$2.43M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTax`	$-31.66M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTax`	$24.48M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTax`	$66.19M	USD	Annual

Cash Flow Statement 126 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`NetIncomeLoss`	$6.17M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$64.00M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$59.72M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-27.79M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$6.01M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$5.49M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-1.77M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-3.91M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$12.31M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$22.05M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$2.01M	USD	1 Quarter
Net realized investment (gains) losses	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$188.00K	USD	1 Quarter
Net realized investment (gains) losses	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$69.00K	USD	1 Quarter
Net realized investment (gains) losses	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$66.00K	USD	1 Quarter
Net realized investment (gains) losses	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$-693.00K	USD	Annual
Net realized investment (gains) losses	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$65.00K	USD	1 Quarter
Net realized investment (gains) losses	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$61.00K	USD	1 Quarter
Net realized investment (gains) losses	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$9.00K	USD	1 Quarter
Net realized investment (gains) losses	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$-885.00K	USD	1 Quarter
Net realized investment (gains) losses	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$-58.00K	USD	1 Quarter
Net realized investment (gains) losses	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$831.00K	USD	Annual
Net realized investment (gains) losses	`AvailableForSaleSecuritiesGrossRealizedGainLossNet`	$208.00K	USD	Annual
Loss (gain) from change in fair value of warrant liability	`FairValueAdjustmentOfWarrants`	$-1.91M	USD	Annual
Loss (gain) from change in fair value of warrant liability	`FairValueAdjustmentOfWarrants`	$1.90M	USD	Annual
Loss (gain) from change in fair value of warrant liability	`FairValueAdjustmentOfWarrants`	$4.11M	USD	Annual
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$6.66M	USD	Annual
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$5.66M	USD	Annual
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$4.86M	USD	Annual
Net amortization of premium on investment securities	`AccretionAmortizationOfDiscountsAndPremiumsInvestments`	$-1.26M	USD	Annual
Net amortization of premium on investment securities	`AccretionAmortizationOfDiscountsAndPremiumsInvestments`	$-1.60M	USD	Annual
Net amortization of premium on investment securities	`AccretionAmortizationOfDiscountsAndPremiumsInvestments`	-	USD	Annual
Amortization of debt discount and debt issuance costs	`AmortizationOfFinancingCostsAndDiscounts`	$1.91M	USD	Annual
Amortization of debt discount and debt issuance costs	`AmortizationOfFinancingCostsAndDiscounts`	$1.47M	USD	Annual
Amortization of debt discount and debt issuance costs	`AmortizationOfFinancingCostsAndDiscounts`	$251.00K	USD	Annual
Deferred income taxes	`DeferredIncomeTaxesAndTaxCredits`	$31.10M	USD	Annual
Deferred income taxes	`DeferredIncomeTaxesAndTaxCredits`	-	USD	Annual
Deferred income taxes	`DeferredIncomeTaxesAndTaxCredits`	$-52.91M	USD	Annual
Share-based compensation expense	`ShareBasedCompensation`	$8.17M	USD	Annual
Share-based compensation expense	`ShareBasedCompensation`	$6.85M	USD	Annual
Share-based compensation expense	`ShareBasedCompensation`	$9.48M	USD	Annual
Accrued investment income	`IncreaseDecreaseInPremiumsReceivable`	$8.59M	USD	Annual
Accrued investment income	`IncreaseDecreaseInPremiumsReceivable`	$4.09M	USD	Annual
Accrued investment income	`IncreaseDecreaseInPremiumsReceivable`	$11.45M	USD	Annual
Premiums receivable	`IncreaseDecreaseInAccruedInvestmentIncomeReceivable`	$791.00K	USD	Annual
Premiums receivable	`IncreaseDecreaseInAccruedInvestmentIncomeReceivable`	$548.00K	USD	Annual
Premiums receivable	`IncreaseDecreaseInAccruedInvestmentIncomeReceivable`	$1.17M	USD	Annual
Prepaid expenses	`IncreaseDecreaseInPrepaidExpense`	$160.00K	USD	Annual
Prepaid expenses	`IncreaseDecreaseInPrepaidExpense`	$563.00K	USD	Annual
Prepaid expenses	`IncreaseDecreaseInPrepaidExpense`	$-626.00K	USD	Annual
Deferred policy acquisition costs, net	`IncreaseDecreaseInDeferredPolicyAcquisitionCosts`	$7.82M	USD	Annual
Deferred policy acquisition costs, net	`IncreaseDecreaseInDeferredPolicyAcquisitionCosts`	$12.58M	USD	Annual
Deferred policy acquisition costs, net	`IncreaseDecreaseInDeferredPolicyAcquisitionCosts`	$14.54M	USD	Annual
Other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$3.15M	USD	Annual
Other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$452.00K	USD	Annual
Other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-419.00K	USD	Annual
Unearned premiums	`IncreaseDecreaseInUnearnedPremiums`	$10.26M	USD	Annual
Unearned premiums	`IncreaseDecreaseInUnearnedPremiums`	$62.13M	USD	Annual
Unearned premiums	`IncreaseDecreaseInUnearnedPremiums`	$68.70M	USD	Annual
Reserve for insurance claims and claim expenses	`IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve`	$2.32M	USD	Annual
Reserve for insurance claims and claim expenses	`IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve`	$5.76M	USD	Annual
Reserve for insurance claims and claim expenses	`IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve`	$596.00K	USD	Annual
Reinsurance balances, net	`IncreaseDecreaseinReinsuranceAssetsandLiabilities`	$-1.33M	USD	Annual
Reinsurance balances, net	`IncreaseDecreaseinReinsuranceAssetsandLiabilities`	-	USD	Annual
Reinsurance balances, net	`IncreaseDecreaseinReinsuranceAssetsandLiabilities`	$2.46M	USD	Annual
Accounts payable and accrued expenses	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$8.17M	USD	Annual
Accounts payable and accrued expenses	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$3.30M	USD	Annual
Accounts payable and accrued expenses	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-2.49M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$41.46M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$67.76M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$71.94M	USD	Annual
Purchase of short-term investments	`PaymentsToAcquireShortTermInvestments`	$170.07M	USD	Annual
Purchase of short-term investments	`PaymentsToAcquireShortTermInvestments`	$131.20M	USD	Annual
Purchase of short-term investments	`PaymentsToAcquireShortTermInvestments`	$21.16M	USD	Annual
Purchase of fixed-maturity investments, available-for-sale	`PaymentsToAcquireAvailableForSaleSecuritiesDebt`	$143.57M	USD	Annual
Purchase of fixed-maturity investments, available-for-sale	`PaymentsToAcquireAvailableForSaleSecuritiesDebt`	$343.77M	USD	Annual
Purchase of fixed-maturity investments, available-for-sale	`PaymentsToAcquireAvailableForSaleSecuritiesDebt`	$219.08M	USD	Annual
Proceeds from maturity of short-term investments	`ProceedsFromSaleOfShortTermInvestments`	-	USD	Annual
Proceeds from maturity of short-term investments	`ProceedsFromSaleOfShortTermInvestments`	$129.03M	USD	Annual
Proceeds from maturity of short-term investments	`ProceedsFromSaleOfShortTermInvestments`	$170.28M	USD	Annual
Proceeds from redemptions, maturities and sale of fixed-maturity investments, available-for-sale	`ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities`	$140.90M	USD	Annual
Proceeds from redemptions, maturities and sale of fixed-maturity investments, available-for-sale	`ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities`	$95.44M	USD	Annual
Proceeds from redemptions, maturities and sale of fixed-maturity investments, available-for-sale	`ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities`	$116.28M	USD	Annual
Software and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$8.51M	USD	Annual
Software and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$11.47M	USD	Annual
Software and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$6.13M	USD	Annual
Net cash used in provided by investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-230.16M	USD	Annual
Net cash used in provided by investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-79.79M	USD	Annual
Net cash used in provided by investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-93.07M	USD	Annual
Taxes paid related to net share settlement of equity awards	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$8.58M	USD	Annual
Taxes paid related to net share settlement of equity awards	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$1.10M	USD	Annual
Taxes paid related to net share settlement of equity awards	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$755.00K	USD	Annual
Proceeds from issuance of common stock related to employee equity plans	`ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions`	$532.00K	USD	Annual
Proceeds from issuance of common stock related to employee equity plans	`ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions`	$415.00K	USD	Annual
Proceeds from issuance of common stock related to employee equity plans	`ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions`	$7.10M	USD	Annual
Proceeds from issuance of common stock related to warrants	`ProceedsFromIssuanceOfCommonStock`	$183.00K	USD	Annual
Proceeds from issuance of common stock related to warrants	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Proceeds from issuance of common stock related to warrants	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Proceeds from term loan, net of discount	`ProceedsFromIssuanceOfLongTermDebt`	$148.50M	USD	Annual
Proceeds from term loan, net of discount	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	Annual
Proceeds from term loan, net of discount	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	Annual
Repayments of term loan	`RepaymentsOfLongTermDebt`	$1.50M	USD	Annual
Repayments of term loan	`RepaymentsOfLongTermDebt`	$375.00K	USD	Annual
Repayments of term loan	`RepaymentsOfLongTermDebt`	$1.50M	USD	Annual
Payments of debt modification costs	`PaymentsOfDebtIssuanceCosts`	-	USD	Annual
Payments of debt modification costs	`PaymentsOfDebtIssuanceCosts`	$445.00K	USD	Annual
Payments of debt modification costs	`PaymentsOfDebtIssuanceCosts`	$4.44M	USD	Annual
Net cash (used in) provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-3.24M	USD	Annual
Net cash (used in) provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$143.00M	USD	Annual
Net cash (used in) provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-1.72M	USD	Annual
Net decrease in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-28.55M	USD	Annual
Net decrease in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-45.70M	USD	Annual
Net decrease in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-9.57M	USD	Annual
Cash and cash equivalents, beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$47.75M	USD	Point-in-time
Cash and cash equivalents, beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$19.20M	USD	Point-in-time
Cash and cash equivalents, beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$57.32M	USD	Point-in-time
Cash and cash equivalents, beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$103.02M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashAndCashEquivalentsAtCarryingValue`	$47.75M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashAndCashEquivalentsAtCarryingValue`	$19.20M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashAndCashEquivalentsAtCarryingValue`	$57.32M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashAndCashEquivalentsAtCarryingValue`	$103.02M	USD	Point-in-time
Interest paid	`InterestPaid`	$9.67M	USD	Annual
Interest paid	`InterestPaid`	$13.36M	USD	Annual
Interest paid	`InterestPaid`	$5.00K	USD	Annual
Income taxes paid	`IncomeTaxesPaid`	$1.22M	USD	Annual
Income taxes paid	`IncomeTaxesPaid`	$200.00K	USD	Annual
Income taxes paid	`IncomeTaxesPaid`	-	USD	Annual

Stockholders Equity 37 line items

Line Item	Tag	Value	Unit	Period
Change in unrealized investment gains/losses, tax amount	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax`	$1.18M	USD	Annual
Change in unrealized investment gains/losses, tax amount	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax`	-	USD	Annual
Change in unrealized investment gains/losses, tax amount	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax`	$1.31M	USD	Annual
Common stock: class A shares issued related to warrants (in shares)	`StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities`	32,000.00	shares	Annual
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Beginning balance	`StockholdersEquity`	$509.08M	USD	Point-in-time
Beginning balance	`StockholdersEquity`	$426.96M	USD	Point-in-time
Beginning balance	`StockholdersEquity`	$475.51M	USD	Point-in-time
Beginning balance	`StockholdersEquity`	$402.73M	USD	Point-in-time
Cumulative effect of change in accounting principle	`CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption`	$903.00K	USD	Point-in-time
Common stock: class A shares issued related to warrants	`StockIssuedDuringPeriodValueConversionOfConvertibleSecurities`	$183.00K	USD	Annual
Common stock: class A shares issued related to warrants (in shares)	`StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities`	32,000.00	shares	Annual
Common stock: class A shares issued under stock plans, net of shares withheld for employee taxes	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlanNetofTaxWithholdings`	$-1.48M	USD	Annual
Common stock: class A shares issued under stock plans, net of shares withheld for employee taxes	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlanNetofTaxWithholdings`	$-690.00K	USD	Annual
Common stock: class A shares issued under stock plans, net of shares withheld for employee taxes	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlanNetofTaxWithholdings`	$-224.00K	USD	Annual
Share-based compensation expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$9.48M	USD	Annual
Share-based compensation expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$6.81M	USD	Annual
Share-based compensation expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$8.12M	USD	Annual
Change in unrealized investment gains/losses, net of tax expense ($1,307 in 2017; $1,178 in 2016; $0 in 2015)	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax`	$-3.87M	USD	Annual
Change in unrealized investment gains/losses, net of tax expense ($1,307 in 2017; $1,178 in 2016; $0 in 2015)	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax`	$2.19M	USD	Annual
Change in unrealized investment gains/losses, net of tax expense ($1,307 in 2017; $1,178 in 2016; $0 in 2015)	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax`	$2.43M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$6.17M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$64.00M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$59.72M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-27.79M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$6.01M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$5.49M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-1.77M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$-3.91M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$12.31M	USD	1 Quarter
Net income (loss)	`NetIncomeLoss`	$22.05M	USD	Annual
Net income (loss)	`NetIncomeLoss`	$2.01M	USD	1 Quarter
Ending balance	`StockholdersEquity`	$509.08M	USD	Point-in-time
Ending balance	`StockholdersEquity`	$426.96M	USD	Point-in-time
Ending balance	`StockholdersEquity`	$475.51M	USD	Point-in-time
Ending balance	`StockholdersEquity`	$402.73M	USD	Point-in-time

Comprehensive Income 6 line items

Line Item	Tag	Value	Unit	Period
Change in unrealized investment gains (losses), tax amount	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$1.18M	USD	Annual
Change in unrealized investment gains (losses), tax amount	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	-	USD	Annual
Change in unrealized investment gains (losses), tax amount	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$1.23M	USD	Annual
Reclassification adjustment from AOCI for sale of securities, tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	-	USD	Annual
Reclassification adjustment from AOCI for sale of securities, tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	-	USD	Annual
Reclassification adjustment from AOCI for sale of securities, tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	$73.00K	USD	Annual

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.