Long-Term Debt - Narrative (Details) (USD $)	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 Revolving Credit Facility	Jun. 30, 2014 Senior Notes due Oct 2018, at a fixed rate 9.5%	Dec. 31, 2013 Senior Notes due Oct 2018, at a fixed rate 9.5%	Jun. 30, 2014 Maximum Revolving Credit Facility	Jun. 30, 2014 Minimum Revolving Credit Facility	Jun. 30, 2014 First Step Down [Member] Revolving Credit Facility	Jun. 30, 2014 Second Step Down [Member] Revolving Credit Facility
Debt Instrument [Line Items]
Payments of Debt Issuance Costs	$ 0	$ 1,281,000
Debt Instrument, Restrictive Covenant, General Restricted Payment Allowance			35,000,000
Percent of Excess Cash Flow Required For Mandatory Prepayment, Annual Mininum			50.00%					75.00%	100.00%
Ratio of Indebtedness to Net Capital						5.75	5.25
Debt Instrument, Restrictive Covenants, Restricted Future Payments			$ 101,000,000		$ 112,000,000
Percent of Consolidated Net Income Used to Calculated Restricted Payments, Annual Mininum				50.00%