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DISCLOSURE OF CHANGES IN NUMBER OF SHARES - shares
6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Treasury stock (2,167,868)  
Common Stock - Outstanding 101,986,758  
Common Stock    
Beginning balance 104,058,684 103,816,185
Issuance of stock 95,942 136,530
Balance at end of year 104,154,626 103,952,715
Treasury stock (2,167,868) (249,674)
Common Stock - Outstanding 101,986,758 103,703,041
Preferred Stock    
Balance at end of year 2,006,391 2,006,391