DISCLOSURE OF CHANGES IN NUMBER OF SHARES - shares	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Treasury stock	(1,989,254)
Common Stock - Outstanding	102,296,440
Common Stock
Beginning balance	104,238,159	104,058,684
Issuance of stock	47,535	95,942
Balance at end of year	104,285,694	104,154,626
Treasury stock	(1,989,254)	(2,167,868)
Common Stock - Outstanding	102,296,440	101,986,758
Preferred Stock
Balance at end of year	2,006,391	2,006,391