Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 78,003	$ 110,134	$ 116,168
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	38,379	37,104	34,836
Provision for losses (recoveries) on advances and guaranteed loans to suppliers	937	(2,339)	3,730
Inventory write-downs	10,319	4,002	7,687
Stock-based compensation expense	5,631	8,152	7,610
Foreign currency remeasurement loss (gain), net	16,422	1,786	(184)
Deferred income taxes	(8,697)	3,873	(11,132)
Equity in net income of unconsolidated affiliates, net of dividends	1,101	3,659	(1,521)
Restructuring and impairment costs	7,543	20,304	0
Restructuring payments	(2,787)	(4,014)	(315)
Other, net	(8,772)	5,613	(7,866)
Changes in operating assets and liabilities, net:
Accounts and notes receivable	16,267	(8,373)	38,264
Inventories and other assets	(94,538)	33,796	(116,728)
Income taxes	10,927	(8,981)	1,239
Accounts payable and other accrued liabilities	(48,534)	(54,912)	13,397
Customer advances and deposits	(11,304)	14,718	(3,940)
Net cash provided by operating activities	10,897	164,522	81,245
Cash Flows From Investing Activities:
Purchase of property, plant and equipment	(35,227)	(38,760)	(34,037)
Purchase of business, net of cash held by the business	(80,180)	0	0
Proceeds from sale of property, plant and equipment	8,547	2,061	5,194
Other	495	2,000	1,450
Net cash used by investing activities	(106,365)	(34,699)	(27,393)
Cash Flows From Financing Activities:
Issuance (repayment) of short-term debt, net	24,114	12,036	(18,159)
Issuance of long-term debt	0	41,147	0
Repayment of long-term debt	0	41,147	0
Dividends paid to noncontrolling interests in subsidiaries	(6,251)	(5,938)	(7,350)
Repurchase of common stock	(33,457)	(1,443)	(21,610)
Dividends paid on common stock	(75,368)	(69,883)	(54,699)
Proceeds from termination of interest rate swap agreements	0	5,428	0
Debt issuance costs and other	(3,184)	(5,987)	(2,828)
Net cash used by financing activities	(94,146)	(65,787)	(104,646)
Effect of exchange rate changes on cash	(512)	(608)	929
Net increase (decrease) in cash and cash equivalents	(190,126)	63,428	(49,865)
Cash and cash equivalents at beginning of year	297,556	234,128	283,993
Cash and Cash Equivalents at End of Year	107,430	297,556	234,128
Supplemental information—cash paid for:
Interest	19,376	16,462	15,621
Income taxes, net of refunds	$ 30,984	$ 44,856	$ 58,339