Commitments and Contingencies (Operating Lease Rental Expense) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Operating Leases Rent Expense [Abstract]
Minimum rentals	$ 24,812,000	[1]	$ 29,242,000	[1]
Contingent rentals	2,077,000		2,423,000
Less: Sublease rentals	(59,000)		(180,000)
Total rent expense	26,830,000		31,485,000
Common area maintenance, parking and storage.	$ 2,300,000		$ 2,400,000

[1] Minimum rentals include all lease payments as well as fixed and variable common area maintenance (“CAM”), parking and storage fees, which were approximately $2.3 million and $2.4 million during the three months ended March 31, 2015 and 2014, respectively