Subsequent Events (Details)				3 Months Ended
	Aug. 14, 2020 $ / shares	Jul. 23, 2020 USD ($)	Jul. 09, 2020 USD ($)	Jun. 30, 2020 USD ($) $ / shares	Jul. 31, 2020	Jul. 08, 2020 USD ($) $ / shares	Jun. 25, 2020 USD ($)	Apr. 30, 2014 USD ($)	Feb. 28, 2013 USD ($)
Subsequent Event
Dividends declared (USD per share) | $ / shares				$ 0.005
Revolving Loan Facility
Subsequent Event
Maximum borrowing capacity				$ 400,000,000
Revolving Loan Facility | Plan
Subsequent Event
Interest rate floor (percent)				1.00%
Senior Notes | New Notes
Subsequent Event
Face amount							$ 50,000,000
Senior Notes | Senior Notes 7.25%
Subsequent Event
Face amount				$ 400,000,000				$ 150,000,000	$ 250,000,000
Subsequent event
Subsequent Event
Estimated annualized dividends (USD per share) | $ / shares	$ 0.020
Back stop commitment fee			$ 3,750,000
Subsequent event | Revolving Loan Facility
Subsequent Event
Excess cash repayment threshold						$ 25,000,000.0
Outstanding debt basis used to determine maturity date						36,500,000
Subsequent event | Revolving Loan Facility | Plan
Subsequent Event
Maximum borrowing capacity						300,000,000
Additional potential decrease in maximum borrowing capacity						25,000,000
Threshold from proceeds from sales of assets that would lead to decrease in borrowing capacity						$ 25,000,000
Excess unit distribution threshold (usd per share) | $ / shares						$ 0.005
Minimum total leverage threshold for excess unit distributions						3.75
Subsequent event | Revolving Loan Facility | Plan | Period One
Subsequent Event
Minimum interest coverage ratio						2.0
Maximum total leverage ratio						5.75
Maximum first lien ratio						2.25
Subsequent event | Revolving Loan Facility | Plan | Period Two
Subsequent Event
Minimum interest coverage ratio						1.75
Maximum total leverage ratio						5.50
Maximum first lien ratio						2.0
Subsequent event | Revolving Loan Facility | Plan | Period Three
Subsequent Event
Minimum interest coverage ratio						2.0
Maximum total leverage ratio						5.00
Subsequent event | Revolving Loan Facility | Plan | Period Four
Subsequent Event
Maximum total leverage ratio						4.50
Subsequent event | Senior Notes | New Notes | Plan
Subsequent Event
Maximum borrowing capacity						$ 54,000,000.0
Subsequent event | Senior Notes | Exchange Notes | Plan
Subsequent Event
Maximum borrowing capacity						$ 323,000,000.0
Subsequent event | Senior Notes | Senior Notes 7.25%
Subsequent Event
Face amount		$ 335,500,000	$ 335,500,000
Debt instrument percentage of principal amount (in percent)		92.045%	92.045%
Minimal tender condition as a percentage of total principal (percent)		95.00%	95.00%		92.00%