Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Operating activities:
Net income	$ 59,672	$ 42,577	$ 22,065
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Depreciation and amortization	29,126	32,675	36,136
Deferred income taxes and related valuation allowance	7,364	(958)	19,968
Net loss (gain) on sale of real estate, investments and other	(563)	194	47
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities	0	0	(619)
Net loss on sales of businesses, including impairment	176	25,672	0
Amortization of deferred financing costs	2,655	2,655	2,681
Stock-based compensation	4,507	6,198	5,586
Other Operating Activities, Cash Flow Statement	7,923	0	0
Changes in operating assets and liabilities, net of effects of business acquisitions and divestitures:
Trade accounts receivable	2,899	(11,328)	(9,308)
Inventories	15,752	(15,411)	(12,249)
Prepaid expenses and other	(3,857)	(128)	1,727
Increase (Decrease) in Other Operating Assets	(724)	(231)	(3,338)
Trade accounts payable	8,110	3,881	3,833
Accrued liabilities	(14,304)	6,397	11,918
Increase (Decrease) in Other Noncurrent Liabilities	(13,389)	(13,156)	(16,700)
Net cash provided by (used for) operating activities	106,795	79,499	69,661
Investing activities:
Proceeds from sales of marketable securities	5,380	3,266	653
Purchases of marketable securities	(5,747)	(2,604)	(327)
Capital expenditures	(9,432)	(12,288)	(14,515)
Proceeds from Sale of Buildings	51	176	0
Payments for (Proceeds from) Businesses and Interest in Affiliates	(214)
Proceeds from Divestiture of Businesses		14,230	0
Payments to Acquire Long-term Investments	0	0	(3,359)
Payments for (Proceeds from) Other Investing Activities	0	0	(14,750)
Net Cash Provided by (Used in) Investing Activities	(9,962)	2,486	(32,592)
Financing activities:
Proceeds from issuance of common stock	6,000	4,152	6,332
Payments of Dividends	(5,670)	(4,652)	(3,658)
Repayment of debt	(51,113)	(65,088)	(60,144)
Fees related to debt repricing/refinancing and equity offerings	0	0	(619)
Other	(768)	(2,190)	(1,413)
Net cash provided by (used for) financing activities	(51,551)	(67,778)	(59,502)
Effect of exchange rate changes on cash	(1,925)	(6,429)	7,569
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	43,357	7,778	(14,864)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	114,700	71,343	63,565
Supplementary cash flows data:
Interest Paid, Excluding Capitalized Interest, Operating Activities	11,555	14,411	18,914
Income taxes paid, net of refunds	11,601	4,840	706
Property, plant and equipment purchases included in trade accounts payable	365	227	0
Decrease in Restricted Cash	250	250	0
Payments to Acquire Restricted Investments	$ 0	$ (294)	$ (294)