Derivative Instruments and Hedging Activities - Additional Information (Details) - USD ($)		3 Months Ended
	Apr. 27, 2015	Mar. 31, 2018	Mar. 31, 2017
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Unrealized gain (loss) on derivative instruments		$ 32,700,000	$ (1,200,000)
Ineffective portion of change in fair value derivatives		0	0
Amounts reported in AOCI that will be reclassified into interest expense during the next twelve months		10,400,000
Interest Expense
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Reclassification out of other comprehensive income into interest expense		$ 2,600,000	$ 5,800,000
Interest Rate Swap
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative, notional value	$ 2,130,000,000
Derivative, maturity date	Oct. 24, 2022
Derivative, weighted average fixed rate paid	2.105%
Interest Rate Swap | Minimum
Derivative Instruments And Hedging Activities Disclosures [Line Items]
LIBOR, variable rate	1.00%