CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Statement of Comprehensive Income [Abstract]
Net Income	$ 3,811		$ 3,821		$ 41,468		$ 39,334
Other Comprehensive Gain (Loss) - Net of Tax:
Unrealized Gain (Loss) on Available-for-Sale Securities	154	[1]	(23)	[1]	216	[1]	(297)	[1]
Unrealized Gain on Derivatives - Other	7	[1]	7	[1]	15	[1]	14	[1]
Other Comprehensive Gain (Loss) - Net of Tax	161	[1]	(16)	[1]	231	[1]	(283)	[1]
Comprehensive Income	$ 3,972		$ 3,805		$ 41,699		$ 39,051

[1] Determined using a combined statutory tax rate of 41% .