DISCLOSURE OF CHANGES IN NUMBER OF SHARES - shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 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	20,987	15,466
Common stock - balance at end of period	104,529,277	104,407,688
Treasury stock	(20,150,097)	(16,281,714)
Common stock shares outstanding	84,379,180	88,125,974