Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 895	$ 11,060
Adjustments to reconcile net income to net cash used by operating activities:
Depreciation	9,067	8,645
Net provision for losses (recoveries) on advances and guaranteed loans to suppliers	(165)	(797)
Foreign currency remeasurement (gain) loss, net	(1,497)	(943)
Other, net	3,780	(6,928)
Changes in operating assets and liabilities, net	(128,819)	(179,366)
Net cash used by operating activities	(116,739)	(168,329)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property, plant and equipment	(5,679)	(11,018)
Proceeds from sale of property, plant and equipment	226	589
Net cash used by investing activities	(5,453)	(10,429)
CASH FLOWS FROM FINANCING ACTIVITIES:
Issuance (repayment) of short-term debt, net	19,257	28,978
Repurchase of common stock	(5,214)	(1,443)
Dividends paid on common stock	(18,742)	(13,712)
Other	(2,883)	(2,656)
Net cash provided (used) by financing activities	(7,582)	11,167
Effect of exchange rate changes on cash	214	(529)
Net decrease in cash and cash equivalents	(129,560)	(168,120)
Cash and cash equivalents at beginning of year	297,556	234,128
Cash and cash equivalents at end of period	$ 167,996	$ 66,008