Leases and Commitments (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Capital Leased Assets [Line Items]
Lease Expense	$ 24,802,000	$ 24,277,000	$ 24,249,000
Capital Leases - Next Twelve Months	1,450,000
Operating Leases - Next Twelve Months	19,187,000
Capital Leases - Due in Two Years	1,436,000
Operating Leases - Due in Two Years	12,517,000
Capital Leases - Due in Three Years	1,433,000
Operating Leases - Due in Three Years	7,395,000
Capital Leases - Due in Four Years	1,427,000
Operating Leases - Due in Four Years	4,274,000
Capital Leases - Due in Five Years	749,000
Operating Leases - Due in Five Years	2,328,000
Capital Leases - Thereafter	1,566,000
Operating Leases - Thereafter	2,252,000
Total future minimum lease payments	8,061,000
Total future minimum lease payments	47,953,000
Amounts representing interest	(1,568,000)
Present value of minimum lease payments	6,493,000
Minimum [Member]
Capital Leased Assets [Line Items]
Lease Term	1 year 0 months 0 days
Maximum [Member]
Capital Leased Assets [Line Items]
Lease Term	20 years 0 months 0 days
Building and Equipment [Member]
Capital Leased Assets [Line Items]
Capital Leased Assets, Gross	13,435,000	14,416,000
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	$ 6,942,000	$ 6,982,000