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Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2013
Accounting Policies [Abstract]  
Allowance for Credit Losses on Financing Receivables
The following is activity in the Company's allowance for doubtful accounts receivable for the years ended December 31, 2013 and 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
$
18,863

 
$
11,497

 
$
—

 
 
$
40,608

Provision charged to expense
9,806

 
7,506

 
18,344

 
 
3,454

Provision charged to other accounts (a)
(163
)
 
(341
)
 
(129
)
 
 
(159
)
Amounts written off, net of recoveries (b)
(15,364
)
 
211

 
(6,718
)
 
 
(2,566
)
Assets held for sale adjustment
—

 
(10
)
 
—

 
 
—

Fresh start accounting adjustment
—

 
—

 
—

 
 
(41,337
)
Balance, end of period
$
13,142

 
$
18,863

 
$
11,497

 
 
$
—

 
(a)
Provision charged to other accounts includes accruals charged to accounts payable for anticipated uncollectible charges on purchase of accounts receivable from others which were billed by the Company.
(b)
Net recoveries for the year ended December 31, 2012 are primarily due to settlements with wholesale carriers for accounts receivable previously reserved as uncollectible.