CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 51,906	$ (63,271)	$ 65,445
Other comprehensive income (loss), net of tax:
Currency translation adjustment	9,611	(8,247)	108
Pensions, net of tax of $99 in 2018, $(670) in 2017 and $(328) in 2016	3,613	3,137	12,437
Gain (loss) on derivatives, net of tax	1,100	(1,100)	0
Total other comprehensive income (loss), net of tax	14,324	(6,210)	12,545
Total comprehensive income (loss)	66,230	(69,481)	77,990
Comprehensive loss attributable to noncontrolling interests	(991)	(354)	(80)
Comprehensive income (loss) attributable to Alliance One International, Inc.	$ 67,221	$ (69,127)	$ 78,070