Accrued Expenses (Schedule of Accued Expenses) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Mar. 31, 2019
Accrued Expenses [Abstract]
Customer deposits	$ 37,357
Accrued compensation	113,959
Accrued outside services	28,822
Accrued insurance	14,293
Accrued income, sales and other taxes	10,129	$ 176
Accrued interest	5,892
Interest rate cap agreements	28,131
Pass-through payments	29,518
Other accrued liabilities	122,193
Total accrued expenses	$ 390,294	$ 176