Long-Term Debt - Face Value to Carrying Value Reconciliation (Details) - Senior Notes - USD ($)	Jun. 30, 2016	Feb. 17, 2016	Dec. 31, 2015	Jul. 03, 2013	Aug. 19, 2010
10% Senior Unsecured Notes due 2017
Debt Instrument [Line Items]
Face Value	$ 135,621,000		$ 350,000,000	$ 200,000,000	$ 150,000,000
Deferred Financing Costs	(855,000)		(2,992,000)
Excess Carrying Value	0		0
Carrying Value	134,766,000	$ 135,600,000	347,008,000
10% Senior Secured Notes due 2021
Debt Instrument [Line Items]
Face Value	144,674,000		0
Deferred Financing Costs	(1,174,000)		0
Excess Carrying Value	13,024,000		0
Carrying Value	$ 156,524,000		$ 0