Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Antidilution
-URI http://asc.fasb.org/extlink&oid=6505113

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6510752

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6508534

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
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-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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Net Income Per Share - Reconciliation of Common Shares Used for Basic and Diluted Earnings Per Share (Detail) - shares	4 Months Ended	8 Months Ended	12 Months Ended
	Apr. 30, 2013	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2014
Successor [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average number of common shares used for basic earnings per share		45,003,925	45,173,542	45,093,304
Effect of potential dilutive shares:
Weighted average number of common shares and potential dilutive shares used for diluted earnings per share		46,302,734	46,006,027	46,933,253
Successor [Member] \| Employee Stock Option [Member]
Effect of potential dilutive shares:
Anti-dilutive shares excluded from reconciliation		66,668	110,000
Successor [Member] \| Restricted Stock Units (RSUs) [Member]
Effect of potential dilutive shares:
Effect of potential dilutive shares		1,189	14,221	37,812
Successor [Member] \| Performance Shares [Member]
Effect of potential dilutive shares:
Effect of potential dilutive shares		0	3,117	5,526
Successor [Member] \| Warrants [Member]
Effect of potential dilutive shares:
Effect of potential dilutive shares		1,297,620	809,834	1,786,804
Successor [Member] \| Employee Stock Option [Member]
Effect of potential dilutive shares:
Effect of potential dilutive shares		0	5,313	9,807
Predecessor [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average number of common shares used for basic earnings per share	302,469,544
Effect of potential dilutive shares:
Weighted average number of common shares and potential dilutive shares used for diluted earnings per share	302,579,245
Predecessor [Member] \| Restricted Stock Units (RSUs) [Member]
Effect of potential dilutive shares:
Effect of potential dilutive shares	109,701
Predecessor [Member] \| Performance Shares [Member]
Effect of potential dilutive shares:
Effect of potential dilutive shares	0
Predecessor [Member] \| Warrants [Member]
Effect of potential dilutive shares:
Effect of potential dilutive shares	0
Predecessor [Member] \| Employee Stock Option [Member]
Effect of potential dilutive shares:
Effect of potential dilutive shares	0