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Income Taxes - Reconciliation of Amounts of Unrecognized Tax Benefits (Detail) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2019
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Beginning balance $ 1,662 $ 1,592 $ 1,740
Additions for tax positions related to current fiscal period 614 170 0
Additions for tax positions related to prior years 0 0 547
Settlements and effective settlements with tax authorities and remeasurements 0 0 0
Reductions related to the expiration of statutes of limitations (65) (100) (695)
Foreign currency translation adjustment 0 0 0
Ending balance $ 2,211 $ 1,662 $ 1,592