Long-Term Debt (Narrative) (Details) (USD $)	6 Months Ended	12 Months Ended		3 Months Ended				0 Months Ended	6 Months Ended	0 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Sep. 24, 2013	Sep. 30, 2013 Senior Secured Credit Facility [Member]	Sep. 24, 2013 Senior Secured Credit Facility [Member] item	Sep. 24, 2013 Standby Letters Of Credit [Member]	Sep. 24, 2013 Swingline Loans [Member]	Sep. 24, 2013 Line Of Credit Facility [Member]	Jun. 30, 2014 Line Of Credit Facility [Member]	Sep. 24, 2013 Variable Rate Financing Agreement [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity					$ 45,000,000
Number of lenders					4
Lender commitments, minimum					15,000,000
Lender commitments, maximum					30,000,000
Amount of additional term loan					50,000,000
Variable rate financing agreement term	5 years	5 years
Total amount paid off								46,600,000
Amount drawn from line of credit										21,000,000
Bank fees				1,400,000
Third party fees				148,000
Line of credit			50,000,000			20,000,000	5,000,000
Consolidated Leverage Ratio through June 30, 2014									4.50%
Future Consolidated Leverage Ratio after June 30, 2014									4.25%
Minimum Liquidity Amount through June 30, 2014									15,000,000
Minimum Future Liquidity Amount after June 30, 2014									$ 20,000,000