Condensed Consolidated Statements of Cash Flows - USD ($)	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash Flows from Operating Activities:
Net loss	$ (60,945,000)	$ (5,188,000)
Loss (income) from discontinued operations	15,432,000	(785,000)
Loss from continuing operations	(45,513,000)	(5,973,000)
Adjustments to reconcile net loss from continuing operations to net cash flows from operating activities:
Depreciation and amortization	37,934,000	23,631,000
Impairment of goodwill and intangibles	24,613,000	0
Losses (gains) on sale of property, plant and equipment	(579,000)	2,931,000
Deferred income taxes	(14,410,000)	4,824,000
Stock and deferred compensation plans	8,393,000	3,376,000
Pension expense, net of payments	10,065,000	3,759,000
Other changes in certain working capital accounts, net	(46,091,000)	15,748,000
Miscellaneous, net	2,788,000	(1,384,000)
Net cash (used in) provided by continuing operating activities	(21,642,000)	41,050,000
Net cash provided by discontinued operating activities	6,861,000	29,984,000
Net operating activities	(14,781,000)	71,034,000
Cash Flows from Investing Activities:
Acquisitions, net of cash acquired	(46,838,000)	(149,334,000)
Proceeds from sale of property, plant and equipment	15,000	6,318,000
Additions to property, plant and equipment	(15,244,000)	(11,908,000)
Purchase of investments	(7,087,000)	(2,003,000)
Change in restricted cash	250,000	1,400,000
Miscellaneous, net	0	389,000
Net cash used in continuing investing activities	(68,904,000)	(155,138,000)
Net cash used in discontinued investing activities	(1,561,000)	(1,330,000)
Net investing activities	(70,465,000)	(156,468,000)
Cash Flows from Financing Activities:
Proceeds from issuance of long-term debt	200,000,000	0
Payments on long-term debt	(121,269,000)	(1,500,000)
Payments of financing costs	(2,592,000)	(483,000)
Dividends paid	(59,523,000)	0
Repurchase of Class A Common shares	(10,901,000)	(21,237,000)
Proceeds from employee stock options	6,041,000	13,175,000
Tax payments related to shares withheld for RSU vesting	(5,126,000)	(4,035,000)
Miscellaneous, net	1,499,000	2,628,000
Net cash provided by (used in) continuing financing activities	8,129,000	(11,452,000)
Net cash provided by (used in) discontinued financing activities	0	0
Net financing activities	8,129,000	(11,452,000)
Decrease in cash and cash equivalents	(77,117,000)	(96,886,000)
Cash and cash equivalents:
Beginning of year	158,459,000	221,255,000
End of period	81,342,000	124,369,000
Supplemental Cash Flow Disclosures
Interest paid	9,353,000	5,511,000
Income taxes paid	$ 14,709,000	$ 397,000