SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of Financial Statements of Affiliate (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
Revenues	$ 10,718			$ 14,468
Operating income	674			872
Net profit	621			767
Other comprehensive profit (loss):
Foreign currency translation adjustment	0			0
Comprehensive net profit	621			767
Company share of Net Profit	$ 53	$ 0	$ 53	$ 49