Leases - Summary of Operating and Finance Lease Costs Weighted Average Lease Terms and Discount Rates (Detail)	Jun. 30, 2020	Mar. 31, 2020
Weighted average remaining lease term (in years):
Operating leases	6 years 9 months 18 days	7 years
Finance leases	6 years 1 month 6 days	6 years 3 months 18 days
Weighted average discount rate:
Operating leases	5.40%	5.40%
Finance leases	5.40%	5.40%