Committed Lines of Credit (Tables)

9 Months Ended

Sep. 30, 2013

Schedule Of Borrowings Outstanding And Letters Of Credit

	September 30,			December 31,
	2013			2012
Borrowings outstanding at end of period	$	66,000		$	52,000
Letters of credit outstanding at end of period	$	27,994		$	35,885
Average interest rate on borrowings at end of period	1.10		%	1.12		%

Ecova [Member]

Schedule Of Borrowings Outstanding And Letters Of Credit

	September 30,			December 31,
	2013			2012
Borrowings outstanding at end of period	$	50,000		$	54,000
Average interest rate on borrowings at end of period	2.19		%	2.21		%