Investment in Unconsolidated Joint Ventures - Summary of Unconsolidated Investments (Details) $ in Thousands	12 Months Ended
Dec. 31, 2019 USD ($) site	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Schedule of Equity Method Investments
Number of Sites \| site	5,942
Investment in unconsolidated joint ventures	$ 20,074	$ 57,755
Equity in income of unconsolidated joint ventures	$ 8,755	4,939	$ 3,765
Meadows Investments \| Various
Schedule of Equity Method Investments
Number of Sites \| site	1,077
Economic Interest (in percentage)	50.00%
Investment in unconsolidated joint ventures	$ 146	346
Equity in income of unconsolidated joint ventures	$ 1,400	1,839	2,197
Lakeshore Investments \| Florida
Schedule of Equity Method Investments
Number of Sites \| site	721
Economic Interest (in percentage)	65.00%
Investment in unconsolidated joint ventures	$ 2,467	2,263
Equity in income of unconsolidated joint ventures	$ 263	22	115
Voyager Investments \| Arizona
Schedule of Equity Method Investments
Number of Sites \| site	1,801
Economic Interest (in percentage)	50.00%
Investment in unconsolidated joint ventures	$ 599	3,135
Equity in income of unconsolidated joint ventures	$ 2,951	995	891
Loggerhead \| Florida
Schedule of Equity Method Investments
Number of Sites \| site	2,343
Economic Interest (in percentage)	0.00%
Investment in unconsolidated joint ventures	$ 0	35,789
Equity in income of unconsolidated joint ventures	$ 3,501	1,486	230
ECHO Financing \| Various
Schedule of Equity Method Investments
Number of Sites \| site	0
Economic Interest (in percentage)	50.00%
Investment in unconsolidated joint ventures	$ 16,862	16,222
Equity in income of unconsolidated joint ventures	$ 640	$ 597	$ 332

The number of joint venture sites.

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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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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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Amount of investment in equity method investee and investment in and advance to affiliate.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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