Income Taxes Income Taxes (Components Of Income Tax) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Taxes [Abstract]
Current Federal Tax Expense (Benefit)	$ 20,759	$ 3,673	$ 22,806
Current State and Local Tax Expense (Benefit)	(289)	412	3,435
Current Foreign Tax Expense (Benefit)	11,639	11,443	1,890
Current Income Tax Expense (Benefit)	32,109	15,528	28,131
Deferred Federal Income Tax Expense (Benefit)	2,427	6,761	1,095
Deferred State and Local Income Tax Expense (Benefit)	314	2,012	(276)
Deferred Foreign Income Tax Expense (Benefit)	(1,591)	(1,951)	(1,360)
Deferred income taxes	1,150	6,822	(541)
Income tax expense	$ 33,259	$ 22,350	$ 27,590