Restructuring Charge - Additional Information (Detail) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
		Sep. 30, 2015	Sep. 30, 2015
Restructuring And Related Activities [Abstract]
Restructuring charge	[1]	$ 7,586	$ 7,586

[1] Refer to Note (14) for additional information regarding the restructuring charge.