Condensed Consolidating Financial Statements (Details 3) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Condensed Consolidated Statements of Comprehensive Income (Loss)
Comprehensive income (loss)	$ (1,510)	$ (4,318)	$ (36,447)	$ (8,459)
Parent
Condensed Consolidated Statements of Comprehensive Income (Loss)
Comprehensive income (loss)	7,277	(44)	(27,224)	(4,354)
Guarantor Subsidiaries
Condensed Consolidated Statements of Comprehensive Income (Loss)
Comprehensive income (loss)	16,222	14,431	(11,713)	15,850
Non-Guarantor Subsidiaries
Condensed Consolidated Statements of Comprehensive Income (Loss)
Comprehensive income (loss)	(7,330)	(1,933)	(6,624)	3,815
Reclassifications and Eliminations
Condensed Consolidated Statements of Comprehensive Income (Loss)
Comprehensive income (loss)	$ (17,679)	$ (16,772)	$ 9,114	$ (23,770)