Long-term Debt (Tables)

9 Months Ended

Sep. 30, 2015

Long-term Debt [Abstract]

Schedule Of Line Of Credit Facilities

	December 31,		September 30,
	2014		2015
Amounts borrowed	$	79,600	$	79,600
Outstanding letters of credit		3,182		2,950
Amounts available to borrow (1)		42,218		67,450

⁽¹⁾ Excluding $100 million increase option