INCOME TAXES - Schedule of Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Unrecognized Tax Benefits
Balance at beginning of period	$ 87,665	$ 98,804
Increases for tax position taken in the current year	7,109	7,366
Increases for tax positions taken in previous years	1,007	2,291
Decreases for tax position taken in previous years	(7,120)	(5,307)
Decreases due to settlements with tax authorities	0	(225)
Decreases due to lapse of statute of limitations	(7,159)	(15,264)
Balance at end of period	$ 81,502	$ 87,665