XML 100 R85.htm IDEA: XBRL DOCUMENT v3.19.1
Commitments and Contingencies (Narrative) (Details) - USD ($)
12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2017
Commitment and Contingency [Line Items]      
Rent expense $ 12,400,000 $ 11,200,000 $ 9,900,000
Indemnification Agreement      
Commitment and Contingency [Line Items]      
Loss contingency accrual $ 0