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Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred income tax liabilities:
Depreciation	$ (4,459)	$ (4,629)
Intangibles	(150,090)	(183,632)
Lease obligations	(3,893)	0
Other	(1,420)	(1,217)
Total deferred tax liabilities	(159,862)	(189,478)
Deferred income tax assets:
Accrued compensation	5,742	4,098
Right of use assets	3,793	0
Unfavorable contracts liability	0	4,739
NOL and tax credit carryforwards	11,152	0
Other	6,179	2,725
Total deferred tax assets	26,866	11,562
Less: Valuation allowance	0	0
Net deferred tax liability	$ (132,996)	$ (177,916)

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