Condednsed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash Flows from Operating Activities:
Net loss	$ (5,490)	$ (8,337)
Adjustments to reconcile net loss to net cash flows from operating activities:
Depreciation and amortization	36,519	35,684
(Gains) losses on sale of property, plant and equipment	(2,861)	140
Deferred income taxes	4,934	(1,770)
Stock and deferred compensation plans	4,608	6,092
Pension expense, net of payments	3,639	4,294
Liability for withdrawal from GCIU employer retirement fund	4,100	0
Other changes in certain working capital accounts, net	27,034	(13,486)
Miscellaneous, net	(1,449)	3,318
Net cash provided by operating activities	71,034	25,935
Cash Flows from Investing Activities:
Acquisitions	(149,334)	0
Proceeds from sale of property, plant and equipment	6,453	300
Additions to property, plant and equipment	(13,437)	(15,531)
Purchase of investments	(2,003)	(1,425)
Change in restricted cash	1,400	1,800
Miscellaneous, net	453	39
Net cash used in investing activities	(156,468)	(14,817)
Cash Flows from Financing Activities:
Payments on long-term debt	(1,500)	(11,925)
Repurchase of Class A Common shares	(21,237)	(69,313)
Proceeds from employee stock options	13,175	40,229
Tax payments related to shares withheld for RSU vesting	(4,035)	(6,157)
Miscellaneous, net	2,145	(4,458)
Net cash used in financing activities	(11,452)	(51,624)
Decrease in cash and cash equivalents	(96,886)	(40,506)
Cash and cash equivalents:
Beginning of year	221,255	242,642
End of period	124,369	202,136
Supplemental Cash Flow Disclosures
Interest paid	5,511	6,077
Income taxes paid	$ 397	$ 290