Leases (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Leases
Lease Expiration Date	Dec. 31, 2033
Capital Leased Assets, Gross	$ 13,950,000
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	3,635,000
Operating Leases, Rent Expense, Net	$ 52,641,000	$ 47,278,000	$ 42,413,000