Consolidated Statements Of Cash Flows - USD ($) $ in Thousands		6 Months Ended
		Sep. 30, 2016	Sep. 30, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income		$ 18,994	$ 18,939
Adjustments to reconcile net income to net cash provided (used) by operating activities:
Depreciation		17,324	18,362
Net provision for losses (recoveries) on advances and guaranteed loans to suppliers		(2,038)	(4,354)
Foreign currency remeasurement loss (gain), net		11,119	21,981
Restructuring and impairment costs	[1]	3,682	2,389
Other, net		(1,108)	927
Changes in operating assets and liabilities, net		(25,548)	(200,010)
Net cash provided (used) by operating activities		22,425	(141,766)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property, plant and equipment		(17,567)	(28,457)
Proceeds from sale of property, plant and equipment		447	1,155
Net cash used by investing activities		(17,120)	(27,302)
CASH FLOWS FROM FINANCING ACTIVITIES:
Issuance (repayment) of short-term debt, net		5,210	23,827
Dividends paid to noncontrolling interests		(1,260)	(1,260)
Dividends paid on convertible perpetual preferred stock		(7,374)	(7,374)
Dividends paid on common stock		(24,106)	(23,536)
Other		(2,245)	(2,037)
Net cash used by financing activities		(29,775)	(10,380)
Effect of exchange rate changes on cash		(83)	(365)
Net decrease in cash and cash equivalents		(24,553)	(179,813)
Cash and cash equivalents at beginning of year		319,447	248,783
Cash and cash equivalents at end of period		$ 294,894	$ 68,970

[1] Restructuring and impairment costs are excluded from segment operating income, but are included in consolidated operating income in the consolidated statements of income and comprehensive income.