Other Long-Term Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Text Block [Abstract]
Cash Surrender Value of Life Insurance	$ 36,375	$ 34,546
Deferred Finance Costs, Noncurrent, Net	2,728	4,103
Long-term Investments	1,171	1,362
Installment receivables, net, long-term	406	806
Prepaid Expense and Other Assets, Noncurrent	1,582	1,831
Other Assets	$ 42,262	$ 42,648