Basis of Presentation - Schedule of Effect of Adoption of ASC 842 (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Apr. 01, 2019	Mar. 31, 2019
Current assets:
Prepaid expenses and other current assets	$ 98,126	$ 57,471	$ 84,986
Non-current assets:
Operating lease right-of-use assets	243,342	268,840	0
Other long-term assets	89,701	87,218	91,837
Current liabilities:
Accounts payable and other accrued expenses	671,600	649,751	664,948
Operating lease liabilities	38,053	34,645	0
Non-current liabilities:
Operating lease liabilities, net of current portion	273,435	295,915	0
Other long-term liabilities	$ 261,678	196,742	$ 275,399
Accounting Standards Update 2016-02
Current assets:
Prepaid expenses and other current assets		(27,515)
Non-current assets:
Operating lease right-of-use assets		268,840
Other long-term assets		(4,619)
Current liabilities:
Accounts payable and other accrued expenses		(15,197)
Operating lease liabilities		34,645
Non-current liabilities:
Operating lease liabilities, net of current portion		295,915
Other long-term liabilities		$ (78,657)