v3.8.0.1

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2017	Dec. 31, 2016
Common Class A
Common stock, authorized (shares)	200,000,000
Common stock, issued (shares)	99,791,245	98,250,917
Common stock, outstanding (shares)	99,791,245	98,250,917
Common Class B
Common stock, authorized (shares)	50,000,000
Common stock, issued (shares)	30,319,564	31,704,988
Common stock, outstanding (shares)	30,319,564	31,704,988
Successor | Common Class A
Common stock, par value (usd per share)	$ 0.0001	$ 0.0001
Common stock, authorized (shares)	200,000,000	200,000,000
Common stock, issued (shares)	99,791,245	98,250,917
Common stock, outstanding (shares)	99,791,245	98,250,917
Successor | Common Class B
Common stock, par value (usd per share)	$ 0.0001	$ 0.0001
Common stock, authorized (shares)	50,000,000	50,000,000
Common stock, issued (shares)	30,319,564	31,704,988
Common stock, outstanding (shares)	30,319,564	31,704,988

X

- Definition

Face amount or stated value per share of common stock.

+ References

Reference 1: 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(29))
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- Definition

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

+ References

Reference 1: 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(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

+ References

Reference 1: 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(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21463-112644

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