Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Revenues	$ 214,098	$ 225,597	$ 428,072	$ 456,154
Operating expenses:
Cost of services and sales, excluding depreciation and amortization	97,968	101,661	232,349	217,227
Other post-employment benefit and pension expense	(52,460)	18,157	(59,358)	36,485
Selling, general and administrative expense	53,434	60,219	109,280	124,907
Depreciation and amortization	55,818	55,080	111,124	109,151
Reorganization related expense	20	47	27	65
Total operating expenses	154,780	235,164	393,422	487,835
Income/(loss) from operations	59,318	(9,567)	34,650	(31,681)
Interest expense	(19,974)	(20,023)	(39,793)	(40,031)
Other	97	(224)	272	(9)
Total other expense	(19,877)	(20,247)	(39,521)	(40,040)
Income/(loss) before income taxes	39,441	(29,814)	(4,871)	(71,721)
Income tax benefit/(expense)	824	7,134	(77)	16,804
Net income/(loss)	$ 40,265	$ (22,680)	$ (4,948)	$ (54,917)
Weighted average shares outstanding:
Basic, in shares	26,654,518	26,454,390	26,621,662	26,423,456
Diluted, in shares	27,025,361	26,454,390	26,621,662	26,423,456
Income/(loss) per share, basic	$ 1.51	$ (0.86)	$ (0.19)	$ (2.08)
Income/(loss) per share, diluted	$ 1.49	$ (0.86)	$ (0.19)	$ (2.08)