Revolving Credit Agreement (Details) (USD $)	1 Months Ended	6 Months Ended	12 Months Ended			1 Months Ended			3 Months Ended		3 Months Ended	1 Months Ended
	Mar. 31, 2014	Jun. 30, 2014	Jun. 30, 2014	Mar. 11, 2014	Dec. 31, 2013	Sep. 30, 2012 Second amended credit agreement [Member]	Sep. 27, 2012 Third amended credit agreement [Member]	Aug. 06, 2014 Subsequent Event [Member]	Jun. 30, 2014 Minimum [Member]	Sep. 28, 2012 Minimum [Member]	Jun. 30, 2014 Maximum [Member]	Mar. 31, 2014 Base Rate Loan [Member] Minimum [Member]	Mar. 31, 2014 Base Rate Loan [Member] Maximum [Member]	Mar. 31, 2014 Eurodollar [Member] Minimum [Member]	Mar. 31, 2014 Eurodollar [Member] Maximum [Member]	Mar. 31, 2014 Libor Rate [Member]
Revolving Credit Agreement (Textual) [Abstract]
Company amended and restated its senior secured revolving credit agreement						September 28, 2012
Senior secured revolving credit maximum facility				$ 385,000,000			$ 400,000,000
Borrowing base				310,000,000						500,000,000
Covenant, additional indebtedness		10,000,000	10,000,000
Borrowed under credit agreement								195,000,000
Additional borrowings for working capital requirements								45,000,000
Outstanding letters of credit		600,000	600,000					600,000
Borrowings interest rate																1.00%
Additional interest rate												0.005	0.0275	0.015	0.0375
Credit facility fee									0.40%		0.50%
Line of Credit Facility, Covenant, Debt to EBITDA Ratio	0		4.25
Line of Credit Facility, Interest Rate Increase (Decrease)				0.25%
Revolving Credit Agreement (Additional Textual) [Abstract]
Credit Agreement, maturity date		Dec. 29, 2016
Deferred loan costs		2,000,000	2,000,000
Outstanding borrowings bore interest effective rate		3.60%	3.60%
Federal Funds Effective Plus Rate	0.50%
Percentage of reserves required to maintain	100.00%
Long-term Line of Credit, Noncurrent		$ 150,000,000	$ 150,000,000		$ 200,000,000