Sales of Receivables - Summary of MARPA Facility Activity (Detail) $ in Thousands	Mar. 31, 2019 USD ($)
Transfers And Servicing Of Financial Assets [Abstract]
Sales of receivables	$ 563,502
Cash collections	(363,502)
Outstanding balance sold to Purchaser	200,000	[1]
Cash collected, not remitted to Purchaser	(71,970)	[2]
Remaining sold receivables	$ 128,030

[1] Represents the increase to cash flows from operations.

[2] Includes the cash collected on behalf of but not yet remitted to the Purchaser as of March 31, 2019. This balance is included in other accrued expenses and current liabilities as of the balance sheet date.