Income Taxes (Provision for Income Taxes Components) (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Expense (Benefit), Continuing Operations [Abstract]
U.S. Federal, Current									$ 78,375	$ 111,024	$ 42,950
State and Local, Current									10,514	14,062	15,937
Non-U.S.									10,051	12,631	9,129
Total income tax, Current									98,940	137,717	68,016
U.S. Federal, Deferred									22,438	(48,685)	26,732
State and Local, Deferred									(9,808)	(5,135)	10,475
Non-U.S.									(1,570)	(697)	(823)
Total income tax, Deferred									11,060	(54,517)	36,384
U.S. Federal, Total									100,813	62,339	69,682
State and Local, Total									706	8,927	26,412
Non-U.S.									8,481	11,934	8,306
Total provision for income tax	$ 26,700	$ 31,000	$ 34,500	$ 17,800	$ 5,100	$ 37,000	$ 23,900	$ 17,200	$ 110,000	$ 83,200	$ 104,400