Prepaid Expenses and Other Current Assets (Schedule of Prepaid Expenses and Other Current Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
Prepaid Expenses and Other Current Assets [Abstract]
Prepaid expenses	$ 86,307	$ 73,354
Other current assets	53,951	44,613
Total prepaid expenses and other current assets	$ 140,258	$ 117,967