CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
Statement of Stockholders' Equity [Abstract]
Pension and other postretirement adjustments, tax	$ 521
Amortization of forward starting swaps, tax	1,325
Issuance of common stock from issuance of unvested shares, exercise of stock options and deferred compensation plans (in shares)	355,224
Issuance of common stock from issuance of unvested shares, exercise of stock options and deferred compensation plans , tax	$ 2,269
Repurchase of common stock (in shares)	1,153,384
Cash dividend declared, per common share outstanding	$ 0.56