Income Taxes (Tables)

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

Income tax benefit (expense) for the year ended December 31, 2013, the year ended December 31, 2012, the 341 days ended December 31, 2011 and the 24 days ended January 24, 2011 consists of the following components (in thousands):

									Predecessor Company
	Year Ended December 31, 2013			Year Ended December 31, 2012			Three Hundred Forty-One Days Ended December 31, 2011		Twenty-Four Days Ended January 24, 2011
Current:
Federal	$	(924	)	$	—		$	913	$	—
State and local	(3,154		)	(1,218		)	160		(21		)
Total current income tax (expense) benefit	(4,078		)	(1,218		)	1,073		(21		)
Investment tax credits	—			—			—		—
Deferred:
Federal	77,341			77,010			49,001		(247,844		)
State and local	17,028			19,768			3,202		(32,024		)
Total deferred income tax benefit (expense)	94,369			96,778			52,203		(279,868		)
Total income tax benefit (expense)	$	90,291		$	95,560		$	53,276	$	(279,889	)

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of the Company's statutory tax rate to its effective tax rate is presented below (in percentages):

							Predecessor Company
	Year Ended December 31, 2013		Year Ended December 31, 2012		Three Hundred Forty-One Days Ended December 31, 2011		Twenty-Four Days Ended January 24, 2011
Statutory federal income tax (benefit) rate	(35.0	)%	(35.0	)%	(35.0	)%	35.0	%
State income tax (benefit) expense, net of federal income tax (benefit) expense	(4.8	)	(4.8	)	(4.0	)	4.3
Post-petition interest	—		—		—		0.4
Goodwill impairment	—		—		16.2		13.7
Non-taxable debt cancellation income	—		—		(9.3	)	(12.3	)
Restructuring charges	—		0.1		0.3		0.3
Other, net	0.6		(0.1	)	1.2		(0.2	)
Valuation allowance	(7.4	)	1.4		19.2		(8.9	)
Effective income tax (benefit) rate	(46.6	)%	(38.4	)%	(11.4	)%	32.3	%

Schedule of Deferred Tax Assets and Liabilities

The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities as of December 31, 2013 and 2012 are presented below (in thousands):

	December 31, 2013			December 31, 2012
Deferred tax assets:
Federal and state tax loss carryforwards	$	76,570		$	75,744
Employee benefits	313,760			347,567
Allowance for doubtful accounts	5,290			7,709
Alternative minimum tax and other state credits	4,925			4,531
Capitalized restructuring costs	3,973			4,672
Accrued professional services	3,838			2,553
Service quality rebate reserve	308			2,449
Other, net	8,938			7,336
Total gross deferred tax assets	417,602			452,561
Deferred tax liabilities:
Property, plant, and equipment	269,908			320,534
Goodwill and other intangible assets	36,121			39,856
Other, net	12,498			10,664
Total gross deferred tax liabilities	318,527			371,054
Net deferred tax assets (liabilities) before valuation allowance	99,075			81,507
Valuation allowance	(166,773		)	(192,492		)
Net deferred tax liabilities	$	(67,698	)	$	(110,985	)

Valuation Allowance Rollforward

The following is activity in the Company's valuation allowance for the year ended December 31, 2013, the year ended December 31, 2012, the 341 days ended December 31, 2011 and the 24 days ended January 24, 2011 (in thousands):

										Predecessor Company
	Year Ended December 31, 2013			Year Ended December 31, 2012			Three Hundred Forty-One Days Ended December 31, 2011			Twenty-Four Days Ended January 24, 2011
Balance, beginning of period	$	(192,492	)	$	(172,875	)	$	(28,519	)	$	(105,554	)
(Increase) decrease allocated to other comprehensive loss	10,884			(13,804		)	(54,278		)	—
(Increase) decrease allocated to continuing operations	14,835			(5,813		)	(90,078		)	77,035
Balance, end of period	$	(166,773	)	$	(192,492	)	$	(172,875	)	$	(28,519	)

Schedule of Unrecognized Tax Benefits Roll Forward

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands):

Balance as of December 31, 2011	$	2,893
Additions for tax positions related to the current year	170
Additions for tax positions of prior years	722
Balance as of December 31, 2012	$	3,785
Additions for tax positions related to the current year	11
Additions for tax positions of prior years	1,059
Balance as of December 31, 2013	$	4,855