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SHAREHOLDERS' EQUITY (Treasury Shares) (Details) - Common stocks - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Treasury Shares [Line Items]
Total shares (in shares)	189	150
Total cost	$ 9,380	$ 8,492
Average price per share (in usd per share)	$ 49.73	$ 56.43
In the open market:
Treasury Shares [Line Items]
Total shares (in shares)	0	0
Total cost	$ 0	$ 0
Average price per share (in usd per share)	$ 0	$ 0
From employees
Treasury Shares [Line Items]
Total shares (in shares)	189	150
Total cost	$ 9,380	$ 8,492
Average price per share (in usd per share)	$ 49.73	$ 56.43

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Total cost of shares repurchased divided by the total number of shares repurchased.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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