Commitments and Contingencies (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other Commitments [Line Items]
Rent expense	$ 4,300,000	$ 4,200,000	$ 3,600,000
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2014	4,230,000
2015	4,218,000
2016	4,207,000
2017	4,323,000
2018	4,357,000
Thereafter	272,992,000
Total	$ 294,327,000
Maximum
Other Commitments [Line Items]
Lease term	99 years