Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

income before income taxes, by location [Table Text Block]

For financial reporting purposes, (loss) income before income taxes includes the following components:

	Years Ended December 31,
(in thousands)	2019			2018			2017
United States	$	(54,861	)	$	48,844		$	195,865
Foreign	(18,879		)	(104,766		)	(11,338		)
Total	$	(73,740	)	$	(55,922	)	$	184,527

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	Year Ended December 31,
(in thousands)	2019			2018			2017
Current income tax expense (benefit)
Federal	$	3,750		$	2,169		$	31,338
State	2,141			1,029			2,843
Foreign	1,677			(4,107		)	529
Total current	7,568			(909		)	34,710
Deferred income tax (benefit) expense
Federal	(11,062		)	11,497			36,911
State	445			1,313			2,591
Foreign	—			1,036			(386		)
Total deferred	(10,617		)	13,846			39,116
Total provision	$	(3,049	)	$	12,937		$	73,826

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Year Ended December 31,
(in thousands)	2019			2018			2017
Tax at U.S. statutory rate on (loss) income before income taxes	$	(15,485	)	$	(11,744	)	$	64,589
Change in valuation allowance	5,570			11,226			1,807
State taxes	2,149			1,376			1,496
Change in uncertain tax positions	1,513			809			681
Foreign income	—			1,048			3,231
Foreign rate differential	1,603			8,936			1,356
Change in tax rate reform	—			—			716
True-ups	249			939			—
Other	1,352			347			(50		)
Total	$	(3,049	)	$	12,937		$	73,826

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	December 31,
(in thousands)	2019			2018
Deferred tax assets:
Net operating loss carryforwards	$	19,789		$	11,713
Research and other tax credits	1,448			1,580
Intangible assets	—			2,203
Stock-based compensation	1,781			1,130
Accruals	1,969			2,362
Debt modifications	7,189			4,661
Capital loss carryforward	1,213			1,866
Other	9,609			6,642
Total deferred tax assets	42,998			32,157
Valuation allowance	(22,143		)	(13,271		)
Total deferred tax assets, net of valuation allowance	20,855			18,886
Deferred tax liabilities:
Debt modifications	(308		)	(2,981		)
Intangible assets	(20,720		)	(28,214		)
Other	(311		)	—
Total deferred tax liabilities	(21,339		)	(31,195		)
Net deferred tax liabilities	$	(484	)	$	(12,309	)

Summary of Income Tax Contingencies [Table Text Block]

	December 31,
(in thousands)	2019			2018		2017
Balance at the beginning of the year	$	80,783		$	79,179	$	59,429
Increases related to tax positions from prior fiscal years	3,927			1,604		783
Increases related to tax positions taken during current fiscal year	—			—		18,967
Decreases related to tax positions from prior fiscal years	(497		)	—		—
Balance at the end of the year	$	84,213		$	80,783	$	79,179