Commitments and Contingencies (Minimum Lease Payments) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]
2014	$ 56,581,000
2015	51,523,000
2016	43,809,000
2017	33,508,000
2018	27,911,000
Thereafter	152,979,000
Total minimum lease commitments	366,310,000	[1]
Minimum non cancelable sublease rentals	$ 900,000

[1] Minimum lease payments have been reduced by aggregate minimum non-cancelable sublease rentals of $0.9 million.