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 from continuing operations includes the following components:

	Years Ended December 31,
(in thousands)	2019			2018			2017
United States	$	(25,249	)	$	(39,518	)	$	28,756
Foreign	—			—			—
Total	$	(25,249	)	$	(39,518	)	$	28,756

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		$	(271	)	$	12,596
State	2,134			1,033			1,289
Foreign	—			—			—
Total current	5,884			762			13,885
Deferred income tax (benefit) expense
Federal	(7,830		)	(7,932		)	671
State	925			(615		)	848
Foreign	—			1,032			—
Total deferred	(6,905		)	(7,515		)	1,519
Total provision	$	(1,021	)	$	(6,753	)	$	15,404

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	$	(5,302	)	$	(8,299	)	$	10,065
Change in valuation allowance	(755		)	875			1,807
State taxes	2,545			(397		)	785
Change in uncertain tax positions	1,513			809			681
Foreign income	—			—			—
Foreign rate differential	—			—			—
Change in tax rate reform	—			—			3,981
True-ups	249			(27		)	—
Other	729			286			(1,915		)
Total	$	(1,021	)	$	(6,753	)	$	15,404

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

	December 31,
(in thousands)	2019			2018
Deferred tax assets:
Net operating loss carryforwards	$	3,602		$	2,384
Research and other tax credits	1,448			1,580
Intangible assets	—			—
Stock-based compensation	1,758			1,106
Accruals	1,388			825
Debt modifications	7,189			4,661
Capital loss carryforward	1,213			1,866
Other	9,564			6,579
Total deferred tax assets	26,162			19,001
Valuation allowance	(7,465		)	(1,887		)
Total deferred tax assets, net of valuation allowance	18,697			17,114
Deferred tax liabilities:
Debt modifications	(308		)	(2,981		)
Intangible assets	(19,649		)	(28,214		)
Other	(311		)	—
Total deferred tax liabilities	(20,268		)	(31,195		)
Net deferred tax liabilities	$	(1,571	)	$	(14,081	)

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