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Fair Value Measurements Fair Value Measurements (Reconciliation of Contingent Consideration Liabilities Related to Acquisitions (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Fair Value Disclosures [Abstract]    
Balance beginning of year $ 0 $ 0
Additions 6,705 0
Payments 0 0
Balance at end of year $ 6,705 $ 0