Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

Schedule of Service Quality Penalties Activity

Based on the Company's current estimate of its SQI penalties in the Northern New England operations, changes in the accrual impacting revenue and payments are as follows (in thousands):

	Three Months Ended March 31,
	2013			2012
Increase (decrease) in liability recorded as a reduction (increase) to revenue	$	142		$	(1,088	)
SQI penalties paid out in the form of customer rebates	$	(345	)	$	—

Schedule of Performance Assurance Plan Credits Activity

Based on the Company's current estimate of its PAP credits in the Northern New England operations, changes in the accrual impacting revenue and payments are as follows (in thousands):

	Three Months Ended March 31,
	2013			2012
Increase (decrease) in estimated reserve recorded as a reduction (increase) to revenue	$	1,601		$	205
PAP credits issued	$	(2,084	)	$	(588	)