Income Taxes - Activity related to gross unrecognized tax benefits (Details) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Activity related to the gross unrecognized tax benefits
Balance as of beginning of the fiscal year	$ 6,744	$ 7,544	$ 7,612
Foreign currency translation related to prior year tax positions			105
Foreign currency translation related to prior year tax positions	(467)	(472)
Decreases related to prior year tax positions		(770)	(332)
Decreases related to prior year tax positions due to settlements or lapse in applicable statute of limitations	(324)	(206)	(335)
Increases related to prior year tax positions	674	648	494
Balance at end of the fiscal year	6,627	6,744	$ 7,544
Accrued interest and penalties	194	311
Total accrued interest and penalties, including foreign currency translation relating to certain foreign and domestic tax matters	1,586	$ 1,572
Decrease in unrecognized tax benefits	117
Cash settlements
Activity related to the gross unrecognized tax benefits
Decrease in unrecognized tax benefits	249
Other comprehensive income (loss)
Activity related to the gross unrecognized tax benefits
Decrease in unrecognized tax benefits	467
Income Tax Expense
Activity related to the gross unrecognized tax benefits
Decrease in unrecognized tax benefits	$ 599

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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Amount of unrecognized tax benefits.

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Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns.

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