CONDENSED CONSOLIDATED STATEMENT OF INCOME & 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
Income Statement [Abstract]
Unrealized gain (loss) on securities, tax benefit (expense)	$ (437)	$ 2,532	$ (89)	$ 2,918