STOCKHOLDERS'/OWNERS' EQUITY (Narrative 2) (Detail) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Dividend reinvestment plan (in shares)	1,549	1,199	7,215
Gross proceeds from issuance of common stock	$ 75,532	$ 22,120	$ 19,651
Dividend Reinvestment And Common Stock Purchase Plan [Member]
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Gross proceeds from issuance of common stock	$ 46,800	$ 36,700	$ 240,000