DISCLOSURE OF CHANGES IN NUMBER OF SHARES - shares	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Preferred Stock:
Preferred stock - Balance at beginning of period	885,726	2,006,391
Preferred stock shares redemption	0	(1,120,665)
Preferred stock - Balance at ending of period	885,726	885,726
Common Stock - Issued:
Common stock - balance at beginning of period	104,508,290	104,392,222
Issuance of stock	54,643	83,032
Common stock - balance at end of period	104,562,933	104,475,254
Treasury stock	(24,721,369)	(20,255,790)
Common stock shares outstanding	79,841,564	84,219,464