CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE (LOSS) INCOME
Net revenue	$ 1,040,769	$ 1,042,054	$ 1,067,172
Material costs	329,223	332,071	336,283
Personnel costs	361,090	363,537	367,094
Other operating costs	129,831	139,024	140,839
General and administrative expenses	110,078	107,224	111,761
Professional accounting and legal fees	36,239	41,233	28,647
Depreciation and amortization	39,259	44,887	46,343
Impairment of intangible assets	54,735	86,164	385,807
Loss from operations	(19,686)	(72,086)	(349,602)
Interest expense, net	57,688	45,199	29,892
Loss on extinguishment of debt		6,031	7,237
Loss from continuing operations before income taxes	(77,374)	(123,316)	(386,731)
Provision (benefit) for income taxes	27,297	(15,910)	(67,614)
Loss from continuing operations	(104,671)	(107,406)	(319,117)
Income (loss) from discontinued operations, net of income taxes		935	(7,974)
Net loss	(104,671)	(106,471)	(327,091)
Other comprehensive (loss) income:
Unrealized (loss) gain on DB SERP, net of income tax (benefit) provision of $(151), $(16) and $81 for 2017, 2016 and 2015, respectively	(246)	(26)	474
Comprehensive loss	$ (104,917)	$ (106,497)	$ (326,617)
Basic and Diluted Per Common Share Data:
Loss from continuing operations (in dollars per share)	$ (2.89)	$ (2.99)	$ (8.96)
Income (loss) from discontinued operations, net of income taxes (in dollars per share)		0.03	(0.22)
Basic and diluted loss per common share (in dollars per share)	$ (2.89)	$ (2.96)	$ (9.18)
Shares used to compute basic and diluted per common share amounts	36,270,920	35,933,222	35,635,448