Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Current:
Federal	$ (2,554)		$ 1,011
State and local	(298)	1,674	872	1,920
Foreign	(31)	713	(121)	507
Total current provision	(2,883)	2,387	1,762	2,427
Deferred
Federal	9,473	4,905	13,018	9,365
State and local	2,120	1,168	2,992	2,952
Foreign	(139)	(492)	54	110
Total deferred provision	11,454	5,581	16,064	12,427
Provision for income taxes	$ 8,571	$ 7,968	$ 17,826	$ 14,854