XML 26 R8.htm IDEA: XBRL DOCUMENT v3.3.1.900
Statements of Consolidated Shareholders' Equity (Parenthetical) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Tax provision (benefit) for recognized net actuarial loss $ 219 $ 6 $ 187
Tax provision (benefit) $ 245 $ (3,115) $ 2,506
Purchase of common shares 198,589 40,145 89,807
Issuance of common shares 1,899 3,531 34,575
Restricted shares awards 20,614 42,678 68,369
Common shares issued to rabbi trust 7,113 43,592 69,120
Cash dividends declared per share $ 0.80 $ 0.80 $ 0.60
Common Shares [Member]      
Issuance of common shares 1,899 3,531 34,575
Restricted shares awards 20,614 42,678 68,369
Common Shares Issued to Rabbi Trust [Member]      
Common shares issued to rabbi trust 7,113 43,592 69,120
Deferred Compensation Liability [Member]      
Common shares issued to rabbi trust 7,113 43,592 69,120
Paid In Capital [Member]      
Issuance of common shares 1,899 3,531 34,575
Restricted shares awards 20,614 42,678 68,369
Retained Earnings [Member]      
Cash dividends declared per share $ 0.80 $ 0.8 $ 0.6
Treasury Stock [Member]      
Purchase of common shares 198,589 40,145 89,807
Unrecognized Pension Benefit Cost [Member]      
Tax provision (benefit) for recognized net actuarial loss $ 219 $ 6 $ 187
Tax provision (benefit) $ 245 $ (3,115) $ 2,506