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Fair Value Measurements - Additional Information (Details)	3 Months Ended
	Mar. 31, 2020 USD ($) engine	Mar. 31, 2019 USD ($) engine	Dec. 31, 2019 USD ($)
Derivative [Line Items]
Fair value of notes receivable	$ 117,000,000.0		$ 39,700,000
Fair value of notes payable	1,609,100,000		1,262,600,000
Increase in interest expense	36,000.0	$ (200,000)
Asset write-down	$ 2,100,000	$ 1,100,000
Number of assets impaired | engine	9	2
Remaining book value	$ 24,700,000
Fair value, recurring | Fair value, inputs, Level 2 | Interest rate contract
Derivative [Line Items]
Notional amount, liability	$ 5,000,000.0
Assets at fair value			$ 1,700,000
Assets to be Sold or Parted Out
Derivative [Line Items]
Number of assets impaired | engine	3

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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