Share-Based Compensation Arrangement By Share-Based Payment Award, Threshold Trading Days

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Volume Weighted Average Price Per Share

+ References

No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Percentage of vesting of share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Equity-Based Compensation - Restricted Stock Awards with Market Conditions Additional Information (Detail) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended						9 Months Ended		12 Months Ended
	Feb. 28, 2014 trading_day $ / shares shares	Sep. 30, 2016 USD ($) shares	Jun. 30, 2016 shares	Mar. 31, 2016 shares	Sep. 30, 2015 USD ($) shares	Jun. 30, 2015 shares	Mar. 31, 2015 shares	Sep. 30, 2016 USD ($) trading_day shares	Sep. 30, 2015 USD ($)	Dec. 31, 2011 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized equity-based compensation \| $		$ 18,456			$ 34,107			$ 18,456	$ 34,107
Restricted stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares, granted (in shares)			112,397	434,283		140,416	441,256
Number of shares, forfeited (in shares)			7,500	588,819	26,125		43,660
2011 Executive Market-Based Awards \| Restricted stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares, granted (in shares)										366,666
2014 Management Market-Based Awards \| Restricted stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares, granted (in shares)	1,277,500
Share-based payment award, threshold, number of trading days \| trading_day	45
Vesting percentage	25.00%
2014 Management Market-Based Awards \| Restricted stock \| Tranche One
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Volume weighted average price targets (in dollars per share) \| $ / shares	$ 28.07
2014 Management Market-Based Awards \| Restricted stock \| Tranche Two
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Volume weighted average price targets (in dollars per share) \| $ / shares	30.16
2014 Management Market-Based Awards \| Restricted stock \| Tranche Three
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Volume weighted average price targets (in dollars per share) \| $ / shares	32.38
2014 Management Market-Based Awards \| Restricted stock \| Tranche Four
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Volume weighted average price targets (in dollars per share) \| $ / shares	$ 34.71
2014 Employee Market-Based Awards \| Restricted stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares, granted (in shares)								90,800
Share-based payment award, threshold, number of trading days \| trading_day								45
Number of shares, forfeited (in shares)		12,600
2014 Management and Employee Market Based Awards \| Restricted stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation expense \| $		$ 100			$ 2,400			$ 800	$ 7,600
Unrecognized equity-based compensation \| $		$ 100						$ 100