Long-Term Debt (Interest Rate Swaps) (Details) (USD $)	3 Months Ended				3 Months Ended		9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012 Interest Rate Swap [Member]	Sep. 30, 2013 Interest Rate Swap [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2012 Interest Rate Swap [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member]	Sep. 30, 2013 Interest Rate Swap [Member]	Sep. 30, 2012 Interest Rate Swap [Member]	Sep. 30, 2013 Interest Rate Swap [Member]	Sep. 30, 2012 Interest Rate Swap [Member]	Dec. 31, 2012 September 2013 [Member] Interest Rate Swap [Member]	Dec. 31, 2012 October 2013 Thru September 2014 [Member] Interest Rate Swap [Member]	Dec. 31, 2012 October 2014 [Member] Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Notional Amount		$ 200,000,000
Derivative, Fixed Interest Rate		1.73%
Quarterly Amortization of Interest Rate Swap Notional Amount									2,500,000	5,000,000	7,500,000
Remaining Balance Of Interest Rate Swap Notional Amount		107,500,000
Derivative Financial Instruments, Liabilities, Fair Value Disclosure			(4,455,000)	(6,486,000)
Unrealized gain/(loss) on interest rate swap, net of tax	100,000				9,000	(492,000)	1,257,000	(1,257,000)
Deferred Taxes Pertaining To Other Comprehensive Income Relating to Swaps					$ (100,000)	$ 300,000	$ (800,000)	$ 800,000