Annual report pursuant to Section 13 and 15(d)

Supplemental Consolidated Financial Information - Valuation accounts (Details)

v3.20.1
Supplemental Consolidated Financial Information - Valuation accounts (Details) - Allowance for doubtful accounts - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2018
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Period $ 895 $ 512 $ 228
Charged to Income Statement 1,739 300 530
Charged to Allowance (1,425) (83) 246
Balance at End of Period $ 4,059 $ 895 $ 512