Fair Value Of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2015

Fair Value Of Financial Instruments [Abstract]

Schedule Of Carrying Amounts And Estimated Fair Values Of Long-Term Debt

	March 31,		December 31,
	2015		2014
Carrying Amount	$	1,642,022	$	1,619,270
Estimated Fair Value		1,682,623		1,694,424