DISCLOSURE OF CHANGES IN NUMBER OF SHARES - shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Treasury stock	(2,074,005)
Common Stock - Outstanding	102,189,914
Common Stock
Beginning balance	104,238,159	104,058,684
Issuance of stock	25,760	42,934
Balance at end of year	104,263,919	104,101,618
Treasury stock	(2,074,005)	(2,144,878)
Common Stock - Outstanding	102,189,914	101,956,740
Preferred Stock
Balance at end of year	2,006,391	2,006,391