Long-Term Debt (Credit Facility, Narrative) (Details) - Jun. 30, 2015	USD ($)
Revolving credit facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$ 105,000,000
Commitment fee on the daily unused portion of the Revolver	0.25%
Debt Instrument, Interest Rate at Period End	1.94%
Debt Instrument, Description of Variable Rate Basis	LIBOR
Revolving credit facility [Member] | June 30, 2015 to September 30, 2015
Line of Credit Facility [Line Items]
Maximum leverage ratio	3.50
Revolving credit facility [Member] | December 31, 2015
Line of Credit Facility [Line Items]
Maximum leverage ratio	3.25
Revolving credit facility [Member] | March 31, 2016 through maturity
Line of Credit Facility [Line Items]
Maximum leverage ratio	3.00
Revolving credit facility [Member] | March 31, 2017
Line of Credit Facility [Line Items]
Minimum fixed charge coverage ratio	1.1
Term loan [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$ 20,000,000
Quarterly term loan payments	$ 750,000
Debt Instrument, Frequency of Periodic Payment	quarterly
Debt instrument, maturity date	Mar. 19, 2017
Swing loan credit facility [Member]
Line of Credit Facility [Line Items]
Maximum borrowings under revolver	$ 7,000,000