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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

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Cash dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporations that are returns of capital. Excludes dividends or distributions from equity method investments classified as operating activities.

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Cash received from principal payments made on loans related to operating activities.

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Investment in Unconsolidated Joint Ventures - Additional Information (Detail) $ in Thousands				12 Months Ended
	Aug. 08, 2017 USD ($)	Jun. 15, 2017 USD ($) joint_venture_site	Aug. 29, 2016 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Jan. 04, 2016 USD ($)	Feb. 12, 2015 USD ($)
Schedule of Equity Method Investments [Line Items]
Investment in unconsolidated joint ventures				$ 33,345	$ 5,134	$ 4,000
Purchase price of the property				142,400	120,500
Equity in income from unconsolidated joint ventures				3,765	2,605	4,089
Term loan issued to JV		$ 13,800
Loan receivable, stated interest rate (in percentage)		5.00%
Adjustment depreciation				1,500	1,300	1,100
Distributions, including those in excess of basis				3,800	5,900	3,700
Distributions in excess of basis				800		1,400
Investments in unconsolidated joint ventures				$ 53,080	19,369
Florida Atlantic Holdings, LLC
Schedule of Equity Method Investments [Line Items]
Investment in unconsolidated joint ventures	$ 30,000
Economic Interest (in percentage)	49.00%
Crosswinds
Schedule of Equity Method Investments [Line Items]
Investment in unconsolidated joint ventures		$ 2,200
Economic Interest (in percentage)		49.00%
Voyager Investments
Schedule of Equity Method Investments [Line Items]
Proceeds from distributions			$ 4,100
Arizona \| Voyager Investments
Schedule of Equity Method Investments [Line Items]
Economic Interest (in percentage)				50.00%
Equity in income from unconsolidated joint ventures				$ 891	1,014	$ 846
Proceeds from loans			$ 8,500
Investments in unconsolidated joint ventures				$ 3,205	$ 3,376
ECHO Financing \| Other Regions
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated joint ventures							$ 5,000	$ 4,000
Crosswinds \| Corporate Joint Venture [Member]
Schedule of Equity Method Investments [Line Items]
Number of sites acquired \| joint_venture_site		376
Purchase price of the property		$ 18,400