Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current:
Federal	$ 11,812	$ 23,816	$ 39,015
State and local	225	3,492	5,603
Foreign	1,400	757	962
Foreign	13,437	28,065	45,580
Deferred:
Federal	35,147	14,808	5,281
State and local	4,321	1,982	553
Foreign	906	(287)	(361)
Total deferred income tax provision	40,374	16,503	5,473
Federal	46,959	38,624	44,296
State and local	4,546	5,474	6,156
Foreign	2,306	470	601
Total income tax expense	$ 53,811	$ 44,568	$ 51,053