OTHER INCOME (EXPENSE), NET (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other Income and Expenses [Abstract]
Club O Rewards and gift card breakage									$ 0	$ 2,742	$ 16,808
Gain on investment in precious metals									0	1,971	201
Loss on equity investments, net									(2,843)	(5,995)	(2,850)
Other									(645)	2,460	22
Total other income (expense), net	$ (1,999)	$ (1,848)	$ 368	$ (9)	$ (1,573)	$ 5,882	$ 593	$ (3,724)	$ (3,488)	$ 1,178	$ 14,181