Condednsed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash Flows from Operating Activities:
Net loss	$ (612)	$ (2,671)
Adjustments to reconcile net loss to net cash flows from operating activities:
Depreciation and amortization	11,729	11,814
Deferred income taxes	(304)	(377)
Stock and deferred compensation plans	2,941	4,132
Pension expense, net of payments	1,021	1,405
Other changes in certain working capital accounts, net	14,640	(26,474)
Miscellaneous, net	45	1,253
Net cash provided by (used in) operating activities	29,460	(10,918)
Cash Flows from Investing Activities:
Acquisitions	(46,000)	0
Additions to property, plant and equipment	(2,584)	(4,979)
Purchase of investments	(153)	(1,125)
Change in restricted cash	1,400	1,800
Miscellaneous, net	361	70
Net cash used in investing activities	(46,976)	(4,234)
Cash Flows from Financing Activities:
Payments on long-term debt	(500)	(3,975)
Repurchase of Class A Common shares	(17,828)	(10,648)
Proceeds from employee stock options	6,855	15,565
Tax payments related to shares withheld for RSUs	(3,835)	(5,906)
Miscellaneous, net	(1,312)	(1,326)
Net cash used in financing activities	(16,620)	(6,290)
Decrease in cash and cash equivalents	(34,136)	(21,442)
Cash and cash equivalents:
Beginning of year	221,255	242,642
End of period	187,119	221,200
Supplemental Cash Flow Disclosures
Interest paid	1,972	1,926
Income taxes paid	$ 367	$ 0