Summary of Significant Accounting Policies and Basis of Presentation - Additional Information (Detail) - USD ($)		12 Months Ended
	Dec. 16, 2019	Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017
Accounting Policies [Line Items]
Doubtful accounts written off		$ 0	$ 0
Allowance for doubtful accounts		0	0
Impairment of long-lived assets		0	0		$ 0
Operating lease right-of-use assets included within other noncurrent assets		$ 800,000
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]		us-gaap:OtherAssetsNoncurrent
Operating lease liabilities included within other current liabilities		$ 200,000
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]		us-gaap:OtherLiabilitiesCurrent
Operating lease liabilities included within other noncurrent liabilities		$ 600,000
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]		us-gaap:OtherLiabilitiesNoncurrent
Finance lease		$ 0
Cash contributed to acquire equity method investments		$ 33,000,000	67,300,000	[1]
Minimum
Accounting Policies [Line Items]
Depreciation lives of assets		12 years
Maximum
Accounting Policies [Line Items]
Depreciation lives of assets		35 years
Revolving Credit Facility | Other Noncurrent Assets
Accounting Policies [Line Items]
Unamortized deferred financing costs		$ 12,200,000	6,900,000
Fixed-Rate Senior Notes and Term Loan | Long-term Debt
Accounting Policies [Line Items]
Unamortized deferred financing costs		28,500,000	$ 16,500,000
LM4
Accounting Policies [Line Items]
Cash contributed to acquire equity method investments		100,300,000
Capitalized interests expenses		$ 4,100,000
Hess and GIP
Accounting Policies [Line Items]
Noncontrolling interest percentage	93.68%	93.68%
Hess Infrastructure Partners Limited Partnership Joint Interest Assets
Accounting Policies [Line Items]
Noncontrolling interest percentage prior to restructuring		80.00%
Percentage of ownership interest	80.00%
General Partner Interest and IDRs
Accounting Policies [Line Items]
Percentage of ownership interest		2.00%

[1] The financial information presented in this report has been retrospectively adjusted for the acquisition of Hess Infrastructure Partners LP.