Leases - Summary of Lease Related Assets and Liabilities Recorded in Balance Sheet Related to Operating Leases (Details) - USD ($)	Sep. 30, 2020	Mar. 31, 2020
Leases [Abstract]
Right-of-use asset, net	$ 87,500,000	$ 90,666,000
Short-term lease liability	12,867,000	13,223,000
Long-term lease liability	82,898,000	85,096,000
Total lease liabilities	$ 95,765,000	$ 98,319,000
Weighted average remaining operating lease term	8 years 25 days	8 years 3 months 7 days
Weighted average remaining finance lease term	4 years 9 months
Weighted average discount rate	4.00%	4.00%