Long-Term Debt (Loss on Extinguishment of Debt) (Details) (USD $)	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Extinguishment of Debt [Line Items]
Face Amount Repaid/Retired	$ 1,200,000		$ 75,500,000
Cash Paid	1,200,000		76,000,000
Loss	20,000	[1]	2,611,000	[1]
Term Loans
Extinguishment of Debt [Line Items]
Face Amount Repaid/Retired	1,200,000		70,500,000
Cash Paid	1,200,000		70,500,000
Loss	0	[1]	1,900,000	[1]
Senior Notes
Extinguishment of Debt [Line Items]
Face Amount Repaid/Retired			5,000,000
Cash Paid			5,500,000
Loss			$ 700,000	[1]

[1] Including write-off of the discount and deferred financing costs related to the debt retired.