Schedule of Operating and Finance Right-of-Use Assets and Lease Liabilities (Detail) - USD ($) $ in Thousands		Jun. 30, 2019		Dec. 31, 2018
Assets
Operating lease assets		$ 1,429,451	[1]	$ 0
Finance lease assets	[1],[2]	$ 122,759
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]		us-gaap:PropertyPlantAndEquipmentNet
Total lease assets	[1]	$ 1,552,210
Liabilities, Current
Operating		215,060	[1]	0
Finance	[1]	15,233
Liabilities, Noncurrent
Operating		1,274,599	[1]	$ 0
Finance	[1]	130,311
Total lease liabilities	[1]	$ 1,635,203

[1] The operating 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 exercised.  The Company does not consider a lease renewal as reasonably certain until immediately before the necessary notification is provided to the landlord.

[2] Finance lease assets are net of accumulated amortization of $54,243 as of June 30, 2019.