STOCKHOLDERS' EQUITY - Narratives (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Class Of Stock [Line Items]
Conversion Of Stock Shares Issued1	852,831
Preferred Stock Liquidation Preference		$ 25
Common Stock Par Or Stated Value Per Share		$ 0.1	$ 0.1
Par amount of the shares issued as common stock, Aggregate value		$ 22,038	$ 21,870
Preferred Stock Value		$ 36,104	$ 36,104
Common Stock Shares Authorized		2,000,000,000	2,000,000,000
Common stock, shares issued		220,382,343	218,700,394
Preferred Stock Shares Issued		22,004,000	22,004,000
Dividends Preferred Stock Cash		$ 2,676	$ 223	$ 0
Shares of common stock repurchased		438,891	291,759
Treasury Stock Shares		4,104,303	1,254,189
Replenishment of the reserve fund required of at least of the original capital contributed, percent		20.00%
Restricted Stock [Member]
Class Of Stock [Line Items]
Shares of common stock repurchased		243,102	65,498
Senior Executives [Member]
Class Of Stock [Line Items]
Shares of common stock repurchased		195,789	226,261