Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 45,574	$ (11,882)	$ 11,071
Other comprehensive income (loss):
Foreign currency translation adjustments	(2,032)	3,295	(2,884)
Cash flow hedging activity, net of taxes of $72, $(162) and $(441), respectively	(286)	294	819
Pension and other postretirement effects, net of taxes of $177, $233 and $311, respectively	(936)	(629)	(672)
Other comprehensive (loss) income	(3,254)	2,960	(2,737)
Comprehensive income (loss)	$ 42,320	$ (8,922)	$ 8,334