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Income Taxes Provision For Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current tax expense [Abstract]
Federal		$ 46,925	$ 40,821	$ 40,515
State		4,891	4,705	2,620
Foreign	(4,500)	1,914	2,345	1,712
Deferred tax expense [Abstract]
Federal		(7,011)	(249)	2,471
State		(635)	101	575
Foreign		(762)	505	(15)
Income taxes		$ 45,322	$ 48,228	$ 47,878

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.