Schedule of Operating and Finance Right-of-Use Assets and Lease Liabilities (Detail) - USD ($) $ in Thousands		Mar. 31, 2019		Dec. 31, 2018
Assets
Operating lease assets		$ 1,443,451	[1]	$ 0
Finance lease assets	[1],[2]	$ 126,854
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]		us-gaap:PropertyPlantAndEquipmentNet
Total lease assets	[1]	$ 1,570,305
Liabilities, Current
Operating		211,387	[1]	0
Finance	[1]	14,942
Liabilities, Noncurrent
Operating		1,284,317	[1]	$ 0
Finance	[1]	134,216
Total lease liabilities	[1]	$ 1,644,862

[1] The lease right-of-use assets and liabilities recorded on the Company’s condensed consolidated balance sheet generally do not include renewal options that have not yet been executed. The Company does not consider a lease renewal exercise as reasonably certain until immediately before the necessary notification is provided to the landlord.

[2] Finance lease assets are net of accumulated amortization of $50,503 as of March 31, 2019.