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CAPITAL STOCK - Cash dividends declared (Details) - Dividend Declared [Member] - USD ($)
$ / shares in Units, $ in Thousands
2 Months Ended 12 Months Ended 109 Months Ended
Feb. 25, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Feb. 25, 2022
Dividends Payable [Line Items]                      
Per Share Amount   $ 0.780 $ 0.790 $ 0.960 $ 1.070 $ 1.680 $ 1.680 $ 1.920 $ 2.160 $ 1.395 $ 12.545
Total   $ 97,601 $ 53,570 $ 54,421 $ 55,814 $ 70,717 $ 41,388 $ 38,748 $ 22,643 $ 4,662 $ 459,066
Subsequent Event [Member]                      
Dividends Payable [Line Items]                      
Per Share Amount $ 0.110                    
Total $ 19,502