CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY
Other comprehensive income (loss), tax (in dollars)	$ (1,417)	$ (7,506)	$ 5,964
Stock-based compensation expense, tax benefits (in dollars)	$ 635	$ 403	$ 610
Dividends paid, per share (in dollars per share)	$ 0.50	$ 0.60	$ 0.43