INVESTMENT IN HOTEL PROPERTIES, NET - Summary of hotel properties acquired (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2017 USD ($)
Business Acquisition [Line Items]
Purchase Price	$ 364,450
Net assets acquired	367,386
Settlement amount of net working capital assets	800
Other assets and capitalized transaction costs	2,100
Homewood Suites | Aliso Viejo (Laguna Beach), CA
Business Acquisition [Line Items]
Purchase Price	38,000
Hyatt Place | Phoenix (Mesa), AZ
Business Acquisition [Line Items]
Purchase Price	22,200
Courtyard by Marriott | Fort Lauderdale, FL
Business Acquisition [Line Items]
Purchase Price	85,000
Courtyard by Marriott | Charlotte, NC
Business Acquisition [Line Items]
Purchase Price	56,250
Courtyard by Marriott | Fort Worth, TX
Business Acquisition [Line Items]
Purchase Price	40,000
Courtyard by Marriott | Kansas City, MO
Business Acquisition [Line Items]
Purchase Price	24,500
Courtyard by Marriott | Pittsburgh, PA
Business Acquisition [Line Items]
Purchase Price	42,000
Hampton Inn & Suites | Baltimore, MD
Business Acquisition [Line Items]
Purchase Price	18,000
Residence Inn by Marriott | Baltimore, MD
Business Acquisition [Line Items]
Purchase Price	$ 38,500