XML 35 R8.htm IDEA: XBRL DOCUMENT v3.6.0.2
Consolidated Statements of Changes in Stockholders' Equity Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dividends on perferred stock (in dollars per share) $ 150 $ 400 $ 398
Dividends on common stock (in dollars per share) $ 0.62 $ 0.59 $ 0.55
Issuance of common shares pursuant to the Dividend Reinvestment Plan (in shares) 50,446 59,717 61,308
Issuance of common shares pursuant to the Deferred Compensation Plan (in shares) 4,683 6,153 13,724
Issuance of common shares pursuant to the First Retirement & Savings Plan (in shares) 558 11,885 8,971
Issuance of restricted common shares pursuant to the 2007 Stock Incentive Plan (in shares) 2,910 3,281 8,789
Stock issued during period, new issue (in shares) 2,600,616    
Stock Issued During Period, Shares, Conversion of Convertible Securities 1,355,319   1,139,426
number of preferred shares converted to common shares 5,500   4,927
Purchase of treasury shares (in shares) 0 53,246 86,681
Issuance of common shares pursuant to the exercise of stock options (in shares) 2,500 0 0
Treasury Stock, Shares, Retired 0 0 1,500,000
Common Stock      
Stock issued during period, new issue (in shares)   1,392,859