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INVESTMENT IN HOTEL PROPERTIES, NET INVESTMENT IN HOTEL PROPERTIES, NET - Summary of hotel properties acquired (Details) - USD ($) $ in Thousands | 6 Months Ended
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Jun. 30, 2016 | Jun. 30, 2015
Business Acquisition [Line Items] |  |
Purchase Price |  | $ 97,951
2016 acquisitions |  |
Business Acquisition [Line Items] |  |
Purchase Price | $ 109,000 |
Courtyard by Marriott | Nashville, TN | 2016 acquisitions |  |
Business Acquisition [Line Items] |  |
Purchase Price | 71,000 |
Residence Inn | Atlanta, GA | 2016 acquisitions |  |
Business Acquisition [Line Items] |  |
Purchase Price | $ 38,000 |
Hampton Inn & Suites | Minneapolis, MN | 2015 acquisitions |  |
Business Acquisition [Line Items] |  |
Purchase Price |  | 38,951
Hampton Inn | Boston (Norwood), MA | 2015 acquisitions |  |
Business Acquisition [Line Items] |  |
Purchase Price |  | 24,000
Hotel Indigo | Asheville, NC | 2015 acquisitions |  |
Business Acquisition [Line Items] |  |
Purchase Price |  | $ 35,000

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