Leases (Summary of Other Lease Information) (Details) $ in Thousands	3 Months Ended
	Jun. 30, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 90,598
Operating cash flows from finance leases	204
Financing cash flows from finance leases	335
Right-of-use assets obtained in exchange for lease liabilities:
Operating leases	$ 6,033