CAPITAL STOCK (Tables)

12 Months Ended

Dec. 31, 2020

Equity [Abstract]

Schedule of Activity Related to Common Stock Outstanding

The activity related to outstanding common stock and common stock held in treasury was as follows:

	December 31,
	2020	2019	2018
Common Stock:	Quantity (in thousands)
Balance, beginning of period	17,460	17,401	17,316
Issuance of shares for compensation net of withholding	54	59	85
Issuance of common stock related to equity distribution agreements	46	—	—
Issuance of common stock related to purchase of businesses	1,481	—	—
Balance, end of period	19,041	17,460	17,401