Debt - 10.5% Senior Notes Narrative (Details) - USD ($) $ in Thousands				9 Months Ended
	Apr. 03, 2012	Mar. 27, 2012	May 05, 2010	Dec. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Interest payable					$ 396	$ 15,603
10.5% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)			10.50%		10.50%		10.50%
Proceeds from issuance of debt	$ 15,000	$ 110,000	$ 230,000
Net proceeds			$ 222,200
Percentage of capital stock of foreign restricted subsidiaries kept as first priority lien			51.00%
Issue price as percentage of principal amount plus accrued interest		105.50%
Unamortized premium		$ 6,100
Repayments of debt				$ 353,000
Interest payable					$ 0	15,400
Debt issuance cost, net of amortization					$ 0	$ 1,400
Effective interest rate (as a percent)						10.20%