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Investment in Unconsolidated Joint Ventures - Additional Information (Detail) $ in Thousands |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Jan. 04, 2016 USD ($) | Jun. 30, 2016 USD ($) site | Jun. 30, 2015 USD ($) | Jun. 30, 2016 USD ($) site | Jun. 30, 2015 USD ($) | Dec. 31, 2015 USD ($)
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Equity in income of unconsolidated joint ventures |  | $ 765 | $ 840 | $ 1,646 | $ 1,724 |
Adjustment depreciation |  |  |  | 600 | 500 |
Distributions, including those in excess of basis |  |  |  | 1,000 | 1,200 |
Investment in unconsolidated joint ventures |  |  |  | $ 5,000 | 4,000 |
Number of Sites | site |  | 3,125 |  | 3,125 |  |
Investments |  | $ 23,223 |  | $ 23,223 |  | $ 17,741
ECHO Financing |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Investment in unconsolidated joint ventures | $ 5,000 |  |  |  |  |
Other Regions | Meadows Investments |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Equity in income of unconsolidated joint ventures |  |  |  | $ 577 | 742 |
Number of Sites | site |  | 1,077 |  | 1,077 |  |
Ownership percentage ( in percentage) |  | 50.00% |  | 50.00% |  |
Investments |  | $ 139 |  | $ 139 |  | 162
Other Regions | ECHO Financing |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Equity in income of unconsolidated joint ventures |  |  |  | $ (8) | 65 |
Investment in unconsolidated joint ventures | $ 15,400 |  |  |  |  |
Number of Sites | site |  | 0 |  | 0 |  |
Ownership percentage ( in percentage) |  | 50.00% |  | 50.00% |  |
Investments |  | $ 15,358 |  | $ 15,358 |  | 10,367
Florida | Lakeshore Investments |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Equity in income of unconsolidated joint ventures |  |  |  | $ 160 | 177 |
Number of Sites | site |  | 342 |  | 342 |  |
Ownership percentage ( in percentage) |  | 65.00% |  | 65.00% |  |
Investments |  | $ 50 |  | $ 50 |  | 46
Arizona | Voyager Investments |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Equity in income of unconsolidated joint ventures |  |  |  | $ 917 | $ 740 |
Number of Sites | site |  | 1,706 |  | 1,706 |  |
Ownership percentage ( in percentage) |  | 50.00% |  | 50.00% |  |
Investments |  | $ 7,676 |  | $ 7,676 |  | $ 7,166
Recreational Vehicle Resort | Voyager Investments |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Ownership percentage ( in percentage) |  | 50.00% |  | 50.00% |  |
Servicing Assets | Voyager Investments |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Ownership percentage ( in percentage) |  | 33.00% |  | 33.00% |  |

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