CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Other comprehensive income:
Net unrealized gain (loss) on available-for-sale securities, taxes	$ 822	$ 2,667	$ 1,315	$ 2,843
Net realized gain on sale of available-for-sale securities included in net income, taxes	0	36	1	236
Change in nonqualified pension plan unrecognized net loss and unrecognized prior service cost, taxes	$ 0	$ 4	$ 1	$ 9