Operating Leases - Lessee (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Leases [Abstract]
Deferred Compensation Liability, Current and Noncurrent	$ 26,100,000	$ 22,800,000
Operating leases expenses	8,500,000	9,100,000	9,200,000
Operating Leases, Future Minimum Payments Due [Abstract]
2013	7,797
2014	7,456
2015	6,906
2016	5,164
2017	4,064
Thereafter	115,073
Total	$ 146,460