Amount of fresh-start adjustment to retained earnings or deficit.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 852

-SubTopic 10

-Section 55

-Paragraph 10

-URI http://asc.fasb.org/extlink&oid=34712771&loc=d3e56426-112766

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 852

-SubTopic 10

-Section 45

-Paragraph 21

-URI http://asc.fasb.org/extlink&oid=6916575&loc=d3e55811-112764

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- Definition

The cumulative amount of the reporting entity's undistributed earnings or deficit.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 31

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.31(a)(3))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Preconfirmation fair value adjustment retained earnings deficit.

+ References

No definition available.

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Fresh Start Accounting - Adjustment Reflects Elimination of Adjusted Retained Earnings (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 19, 2012	Dec. 31, 2014	Dec. 31, 2013
Adjustment reflects the elimination of adjusted retained earnings
Retained earnings		$ 18,400	$ 12,015
Adjustment for carve-out allocations	23,109
Retained earnings, Fair Value Adjustments	(124,786)
Predecessor [Member]
Adjustment reflects the elimination of adjusted retained earnings
Retained earnings	101,677
Adjustment for carve-out allocations	23,109
Retained earnings, Fair Value Adjustments	$ 124,786