Leases and Other Commitments - Schedule of Supplemental Lease Information (Details) $ in Thousands	12 Months Ended
	Mar. 31, 2020 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Weighted-average remaining lease term in years	6 years 7 months 6 days
Weighted-average discount rate	3.30%
Operating lease assets obtained in exchange for lease liabilities	$ 71,097
Reductions to operating lease assets for reductions to lease liabilities or for operating lease asset impairments	$ (7,055)