Deferred Assets and Other Regulatory Assets (Tables)

9 Months Ended

Sep. 30, 2015

Deferred Finance Costs And Other Regulatory Assets Net [Abstract]

Summary of Deferred Assets and Other Regulatory Assets, Net

Deferred assets and other regulatory assets, net are as follows:

	September 30, 2015							December 31, 2014
(In thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Deferred financing costs	$	1,292	$	(312	)	$	980	$	1,290	$	(143	)	$	1,147
Other regulatory assets:
Deferred financing costs		26,180		(14,960	)		11,220		25,701		(12,693	)		13,008
Deferred costs recoverable in future years		23,793		—			23,793		23,793		—			23,793
Deferred financing costs and other regulatory    assets, net	$	51,265	$	(15,272	)	$	35,993	$	50,784	$	(12,836	)	$	37,948