Supplemental Cash Flow Information - Summary of Supplemental Cash Flow Information (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Supplemental Cash Flow Elements [Abstract]
Cash paid for interest	$ 194,087	$ 199,960
Cash paid for income taxes	9	0
Cash received for income tax refunds	7	7,786
Noncash Investing and Financing Items [Abstract]
Accrued capital expenditures	236,200		$ 317,500
Increase (Decrease) in Asset Retirement Obligations	4,313	$ 6,591
Accrued contributions from noncontrolling interests	1,800		9,300
Accrued distributions to noncontrolling interests	1,000		$ 1,300
ASU 2016-02 Lease assets and liabilities recognition	$ 19,000

Accrued contributions from noncontrolling interests

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Accrued distributions to noncontrolling interests

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Future cash outflow to pay for purchases of fixed assets that have occurred.

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.

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The increase (decrease) during the reporting period in the carrying amount of asset retirement obligations.

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Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities.

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Represents the quantification of the effect of adopting the new accounting standard or change in accounting principle expected by the entity to have a significant effect on the entity's financial statements.

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The amount of cash received during the period as refunds for the overpayment of taxes.

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