Comprehensive Income (Loss) and Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period			$ 112,481
Balance at the end of the period	$ 90,447		90,447
Net Accumulated Other Comprehensive Income (Loss)
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period	(45,527)	$ (35,387)	(31,425)	$ (28,796)
Other comprehensive income (loss) before reclassifications	(6,758)	(411)	(23,995)	(8,811)
Amounts reclassified out of AOCI	1,261	2,111	4,396	3,920
Other comprehensive income (loss)	(5,497)	1,700	(19,599)	(4,891)
Balance at the end of the period	(51,024)	(33,687)	(51,024)	(33,687)
Foreign Currency Translation
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period	(17,347)	(10,733)	(10,272)	(12,132)
Other comprehensive income (loss) before reclassifications	(10,773)	(6,121)	(17,848)	(4,722)
Other comprehensive income (loss)	(10,773)	(6,121)	(17,848)	(4,722)
Balance at the end of the period	(28,120)	(16,854)	(28,120)	(16,854)
Post-Retirement Benefit Plan Adjustments
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period	1,029	1,080	1,114	1,159
Amounts reclassified out of AOCI	116	96	31	17
Other comprehensive income (loss)	116	96	31	17
Balance at the end of the period	1,145	1,176	1,145	1,176
Defined Benefit Pension Plans, Net of Tax
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period	(14,834)	(19,951)	(15,161)	(20,363)
Other comprehensive income (loss) before reclassifications		6,663		6,663
Amounts reclassified out of AOCI	165	247	492	659
Other comprehensive income (loss)	165	6,910	492	7,322
Balance at the end of the period	(14,669)	(13,041)	(14,669)	(13,041)
Accumulated tax expense (benefit)			2,000	2,200
Ownership Share of Equity Method Investees’ Other Comprehensive Income (Loss)
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period	(12,302)	(3,069)	(6,739)	1,537
Other comprehensive income (loss) before reclassifications	6,161	143	598	(4,463)
Other comprehensive income (loss)	6,161	143	598	(4,463)
Balance at the end of the period	(6,141)	(2,926)	(6,141)	(2,926)
Foreign Exchange Contracts
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period	(2,073)	(2,714)	(367)	1,003
Other comprehensive income (loss) before reclassifications	(2,146)	(1,096)	(6,745)	(6,289)
Amounts reclassified out of AOCI	980	1,768	3,873	3,244
Other comprehensive income (loss)	(1,166)	672	(2,872)	(3,045)
Balance at the end of the period	$ (3,239)	$ (2,042)	$ (3,239)	$ (2,042)