CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($) shares
Statement of Stockholders' Equity [Abstract]
Pension and other postretirement adjustments, tax | $	$ 322
Amortization of forward starting swaps, tax | $	$ 627
Issuance of common stock from performance share units and exercise of stock options | shares	361,570
Repurchase of common stock (in shares) | shares	628,493