OTHER INCOME (EXPENSE), NET (Details 2) - USD ($) $ in Thousands, shares in Millions	1 Months Ended		12 Months Ended
	Apr. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Number of available for sale shares acquired (in shares)				4.1
Purchase of available for sale securities			$ 0	$ 48,219	$ 29,966
Loss on HLSS equity securities and dividends received, net			0	0	1,854
HLSS
Schedule of Available-for-sale Securities [Line Items]
Liquidating dividends and other dividends	$ 20,400
Sale proceeds from HLSS common stock	$ 7,700
Loss on HLSS equity securities and dividends received, net			$ 0	$ 0	$ (1,900)
Common stock | HLSS
Schedule of Available-for-sale Securities [Line Items]
Number of available for sale shares acquired (in shares)		1.6
Purchase of available for sale securities		$ 30,000
Available-For-Sale Securities, Shares Sold	1.6