Discontinued Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Discontinued Operations and Disposal Groups [Abstract]
Revenue	$ 106,974	$ 111,174	$ 309,900	$ 338,337
(Loss) gain on sale, net of taxes	0	(634)	(18,668)	1,226
Earnings from operations before taxes	7,531	11,531	26,108	29,693
Benefit from (provision for) income taxes	(2,069)	(3,181)	46,733	(4,604)
Earnings from operations, net of tax	5,462	8,350	72,841	25,089
Earnings from discontinued operations, net of tax	5,462	7,716	54,173	26,315
Tax benefits recognized	1,971		54,425
Deferred tax benefit recognized			25,520
Goodwill impairment loss, gross			54,532
Goodwill impairment loss, net of tax			44,188
Assets of Discontinued Operations
Accounts receivable	78,272		78,272		63,229
Inventories, net	54,170		54,170		51,252
Prepaid and other current assets	15,348		15,348		10,263
Current assets	147,790		147,790		124,744
Property, plant and equipment, net	35,778		35,778		31,935
Goodwill and intangible assets, net	186,597		186,597		238,657
Other assets and deferred charges	5,335		5,335		2,209
Total assets of discontinued operations	375,500		375,500		397,545
Liabilities of Discontinued Operations
Accounts payable	28,822		28,822		22,613
Other current liabilities	35,037		35,037		34,592
Current liabilities	63,859		63,859		57,205
Deferred income taxes	27,898		27,898		64,853
Other liabilities	41,673		41,673		86,900
Total liabilities of discontinued operations	$ 133,430		$ 133,430		$ 208,958