Accelerated Allocated Share Based Compensation Expense

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Converted In Period

+ 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=96867065&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=96867065&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=96867065&loc=d3e5070-113901

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ 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=96867065&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=96867065&loc=d3e5070-113901

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued 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=96867065&loc=d3e5070-113901

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ 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)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

+ 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)(2)
-URI http://asc.fasb.org/extlink&oid=96867065&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.

+ Details

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- Definition

Number of additional shares authorized for issuance under an established share-based compensation plan.

+ References

No definition available.

+ Details

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ 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)(3)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Number of shares for which recognition of compensation cost was accelerated.

+ References

No definition available.

+ Details

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Equity-Based Compensation - Restricted Stock Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions								3 Months Ended	12 Months Ended
	Feb. 09, 2019	Apr. 02, 2018	Feb. 09, 2018	Feb. 03, 2017	Feb. 03, 2016	Dec. 21, 2015	May 26, 2015	Dec. 31, 2015	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense									$ 50.9	$ 18.9	$ 12.4
Accelerated share-based compensation									6.9	$ 1.3
Compensation cost not yet recognized									$ 40.9
Compensation cost not yet recognized, period for recognition									1 year 7 months
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding shares (in shares)								3,900,000	2,077,265	1,581,711	2,908,374
Shares granted in period (in shares)			772,642			318,000			1,146,586	982,764	844,646
Vested in period, weighted average grant date fair value (in dollars per share)									$ 34.90
Grants in period, weighted average grant date fair value (in dollars per share)					$ 45.85	$ 32.37			$ 46.27	$ 38.31	$ 28.56
Vesting period (in years)			3 years			3 years
The Omnibus Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding shares (in shares)									3,596,344
The Omnibus Plan \| Restricted Stock \| Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Accelerated vesting, number of shares								4,381,021
BKLS LLC Profit Interests Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares converted (in shares)							(10,733,330)
Vested in period, weighted average grant date fair value (in dollars per share)										$ 2.01
Grants in period, weighted average grant date fair value (in dollars per share)											$ 2.10
Vesting period (in years)												3 years
Common Class A \| The Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized											11,000,000.0
Additional shares authorized (in shares)										7,500,000.0
Common Class A \| The Omnibus Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares converted (in shares)							7,994,215
Subsequent Event \| Common Class A \| The Omnibus Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted in period (in shares)	793,863
Grants in period, weighted average grant date fair value (in dollars per share)	$ 52.38
Vesting after third year \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted in period (in shares)		200,427		203,160	552,311
Grants in period, weighted average grant date fair value (in dollars per share)				$ 37.90
Vesting period (in years)		2 years 3 months 19 days		3 years	4 years
Vesting after second year \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted in period (in shares)		159,915		681,410	247,437
Grants in period, weighted average grant date fair value (in dollars per share)		$ 46.90			$ 28.29
Vesting period (in years)		3 years		4 years	3 years