v3.5.0.1

Senior Secured Notes Narrative and Redemption Schedule (Details) - USD ($)	1 Months Ended	2 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
	Jan. 31, 2015	Dec. 15, 2013	Jun. 15, 2014	Dec. 31, 2014	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014	Mar. 21, 2016	Mar. 18, 2016	May 05, 2015	Jan. 20, 2015	Sep. 08, 2014	Aug. 13, 2014	Aug. 12, 2014	Feb. 28, 2014	Oct. 02, 2013	Jun. 30, 2011	Dec. 31, 2010
Debt Redemption Percentage
Consent Fee Percentage					1.00%
Debt Instrument, Repurchased Face Amount															$ 2,300,000		$ 20,000,000
Paid-in-Kind Interest					$ 0	$ 4,809,000	$ 1,912,000
Payment of Deferred Consent Fees					2,700,000
Second Lien Notes
Debt Redemption Percentage
Interest rate per annum																10.00%
Debt Instrument, Exchange Amount																$ 94,300,000
Senior Secured Notes
Debt Redemption Percentage
Debt Instrument, Face Amount					378,718,000	309,569,000
Debt Instrument, Repurchased Face Amount						56,100,000
Debt Instrument, Exchange Amount												$ 121,100,000
Senior Secured Notes | First Lien Notes
Debt Redemption Percentage
Debt Instrument, Face Amount					$ 214,277,000	275,175,000			$ 266,100,000					$ 218,200,000				$ 385,000,000.0
Interest rate per annum																		11.50%
Debt Instrument, Repurchased Face Amount						55,500,000				$ 2,000,000
Redemption price					105.90%
Debt Instrument, Exchange Amount								$ 58,900,000			$ 32,000,000
Senior Secured Notes | First Lien Notes | 12-month period beginning on December 15, 2015
Debt Redemption Percentage
Redemption price				102.875%
Senior Secured Notes | First Lien Notes | 12-month period beginning on December 15, 2016 and Thereafter
Debt Redemption Percentage
Redemption price				100.00%
Senior Secured Notes | Second Lien Notes
Debt Redemption Percentage
Debt Instrument, Face Amount					$ 0	2,198,000								7,800,000				$ 104,900,000.0
Interest rate per annum																		13.50%
Debt Instrument, Repurchased Face Amount					$ 2,200,000	600,000
Redemption price					103.40%
Debt Instrument, Exchange Amount												7,800,000
Senior Secured Notes | New Second Lien Notes
Debt Redemption Percentage
Debt Instrument, Face Amount					$ 198,575,000	$ 39,024,000		159,600,000	$ 39,000,000
Interest rate per annum											7.00%
Redemption price	107.00%
Debt Instrument, Exchange Amount								76,000,000			$ 39,000,000
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed	35.00%
Debt Instrument, Redemption Price, Percentage of Principal Amount Not Redeemed	65.00%
Senior Secured Notes | New Second Lien Notes | 12-month period beginning on December 15, 2013
Debt Redemption Percentage
Redemption price				107.00%
Senior Secured Notes | New Second Lien Notes | 12-month period beginning on December 15, 2014
Debt Redemption Percentage
Redemption price				103.50%
Senior Secured Notes | New Second Lien Notes | Debt Instrument, Redemption, Period One [Member]
Debt Redemption Percentage
Redemption price				100.00%
Senior Secured Notes | Second Lien PIK Notes
Debt Redemption Percentage
Debt Instrument, Face Amount													$ 12,300,000	$ 101,000,000
Interest rate per annum																10.00%
Debt Instrument, Exchange Amount												$ 113,300,000
Paid-in-Kind Interest		$ 1,900,000	$ 4,800,000
Equity Distribution [Member] | Senior Secured Notes | New Second Lien Notes
Debt Redemption Percentage
Debt Instrument, Face Amount								76,200,000
Investors
Debt Redemption Percentage
Payment of Deferred Consent Fees					$ 2,500,000
Investors | Senior Secured Notes | New Second Lien Notes
Debt Redemption Percentage
Debt Instrument, Face Amount								68,800,000
Related Party | Senior Secured Notes | New Second Lien Notes
Debt Redemption Percentage
Debt Instrument, Face Amount								7,400,000
Cash Proceeds [Member] | Senior Secured Notes | New Second Lien Notes
Debt Redemption Percentage
Debt Instrument, Face Amount								$ 7,300,000

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