Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Contingency [Line Items]
Foreign net operating loss carryforwards	$ 7,682	$ 6,795
Deferred tax asset, net	44,387	29,108
Income tax receivable	8,000	3,500
Uncertain tax positions that would impact effective tax rate	1,200	1,200
Tax credit recognized in current income tax benefit	200
Tax credit recognized in deferred income tax benefit	21,800
Change in federal corporate tax rate	0	0	$ 6,541
Change in limitation of future deductibility of certain executive compensation	0	0	3,497
Interest expense
Income Tax Contingency [Line Items]
Income tax interest and penalties			$ 300
Accrued liability for interest	600	600
Inova Re
Income Tax Contingency [Line Items]
Increase (decrease) in valuation allowance	300
Deferred tax asset, net	600	300
Federal
Income Tax Contingency [Line Items]
Net operating loss carryforwards	10,100
State
Income Tax Contingency [Line Items]
Net operating loss carryforwards	7,900
Foreign
Income Tax Contingency [Line Items]
Net operating loss carryforwards	28,600
Valuation allowance related to NOL carryforwards	4,900	$ 6,800
Tax Credit from Tax Credit Partnership Investments
Income Tax Contingency [Line Items]
Tax credit carryforwards	21,800
Operating Loss Carryforwards, Foreign
Income Tax Contingency [Line Items]
Increase (decrease) in valuation allowance	(1,900)
Tax Year 2038 | Tax Credit from Tax Credit Partnership Investments
Income Tax Contingency [Line Items]
Tax credit carryforwards	3,700
Tax Year 2039 | Tax Credit from Tax Credit Partnership Investments
Income Tax Contingency [Line Items]
Tax credit carryforwards	$ 18,100