Schedule II - Valuation and Qualifying Accounts (Details) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2017
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]        
Accounts Receivable, Allowance for Credit Loss, Current $ 12,051 $ 9,645 [1] $ 12,472 [1] $ 10,357 [1]
Accounts Receivable, Credit Loss Expense (Reversal) [1] 6,760 356 2,183  
Allowance for trade accounts receivable charges to other accounts [1],[2] (247) (327) 1,925  
Allowance for trade accounts receivable deductions [1],[3] (4,107) (2,856) (1,993)  
Inventory Valuation Reserves 16,149 19,754 19,639 17,854
Inventory Write-down [4] (4,105) (673) 2,446  
Foreign currency translation and other adjustments [2] 500 788 (661)  
Deferred Tax Assets, Valuation Allowance 13,891 13,478 13,596 16,366
SEC Schedule, 12-09, Valuation Allowances and Reserves, Increase (Decrease) Adjustment (1,927) (1,653) 209  
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction (987) (2,520) (6,514)  
Liability for Claims and Claims Adjustment Expense, Property Casualty Liability 23,228 19,742 20,949 $ 22,718
Supplemental Information for Property, Casualty Insurance Underwriters, Paid Claims and Claims Adjustment Expense 6,000 4,456 5,713  
Incurred Claims, Property, Casualty and Liability 3,007 1,158 2,563  
Incurred Claims, Property, Casualty and Liability (5,521) (4,505) (4,919)  
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]        
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]        
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense $ 3,327 $ 4,055 $ 3,535  
[1] Net allowance for doubtful accounts and allowance for sales and returns.
[2] Change in foreign currency exchange rates and acquired reserves.
[3] Uncollectible accounts written off, net of recoveries.
[4] Provision for excess and obsolete inventory, net of inventory written off.