BUSINESS ACQUISITIONS - Schedule of Assets and Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Sep. 20, 2016	Sep. 24, 2015	Dec. 31, 2014
Liabilities [Abstract]
Goodwill	$ 26,763	$ 20,337			$ 5,293
Vegas and China Branding Group Limited
Liabilities [Abstract]
Net revenue	61,615	57,561
Net loss	$ (23,743)	$ (54,592)
Vegas.com LLC
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets [Abstract]
Cash and cash equivalents				$ 8,490
Restricted cash				5,260
Accounts receivable				797
Prepaid expense and other current assets				1,307
Note receivable, current				172
Total current assets				16,026
Note receivable, long term				371
Property and equipment				4,824
Intangibles				39,504
Total identifiable assets acquired				60,725
Liabilities [Abstract]
Accounts payable				15,782
Deferred revenue				2,148
Other current liabilities				10,346
Deferred merchant booking				8,837
Lease obligation, current				2,025
Net identifiable assets acquired				21,587
Goodwill				15,044
Total purchase consideration				$ 36,631
China Branding Group Limited
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets [Abstract]
Cash and cash equivalents			$ 60
Accounts receivable			368
Other current assets			17
Total current assets			445
Intangibles			9,206
Total identifiable assets acquired			9,651
Liabilities [Abstract]
Accounts payable			528
Deferred revenue			145
Other current liabilities			11
Net identifiable assets acquired			8,967
Goodwill			6,426
Total purchase consideration			$ 15,393