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Investment in Unconsolidated Joint Ventures - Additional Information (Detail) - USD ($) $ in Thousands |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Aug. 29, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Jan. 04, 2016 | Feb. 12, 2015
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Equity in income from unconsolidated joint ventures |  | $ 2,605 | $ 4,089 | $ 4,578 |  |
Adjustment depreciation |  | 1,300 | 1,100 | 900 |  |
Distributions, including those in excess of basis |  | 5,900 | 3,700 | 5,900 |  |
Distributions in excess of basis |  |  | 1,400 |  |  |
Investments in unconsolidated joint ventures |  | 19,369 | 17,741 |  |  |
Voyager Investments |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Proceeds from distributions | $ 4,100 |  |  |  |  |
Other Regions | Other Investments |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Equity in income from unconsolidated joint ventures |  | 0 | 0 | 25 |  |
Investments in unconsolidated joint ventures |  | 0 | 0 |  |  |
Other Regions | ECHO Financing |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Equity in income from unconsolidated joint ventures |  | (75) | 65 | 103 |  |
Investments in unconsolidated joint ventures |  | 15,427 | 10,367 |  |  |
Arizona | Voyager Investments |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Equity in income from unconsolidated joint ventures |  | 1,014 | 846 | $ 806 |  |
Proceeds from loans | $ 8,500 |  |  |  |  |
Investments in unconsolidated joint ventures |  | $ 3,376 | $ 7,166 |  |  |
ECHO Financing | Other Regions |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Investments in unconsolidated joint ventures |  |  |  |  | $ 5,000 | $ 4,000

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- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(12)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(10)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66022249&loc=d3e33749-111570 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(13)(f)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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