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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Vesting as a Percentage of Granted

+ 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 50

-Paragraph 1

-Subparagraph (b)

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-Publisher FASB

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-Subparagraph (h)(1)(i)

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

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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

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-Paragraph 2

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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.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

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- Definition

Percentage of vesting of share-based compensation awards.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

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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)

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

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-Paragraph 2

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- Definition

Net number of share options (or share units) granted during the period.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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Share-Based Compensation - Narrative (Details) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended	3 Months Ended		0 Months Ended
	Jan. 28, 2015	Mar. 31, 2015	Mar. 31, 2014	Mar. 25, 2014
Restricted shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares granted in period (in shares)	126,319
Vesting period	4 years
Granted shares value (in dollars per share)	$ 26.58
Estimated future compensation expense for unvested shares		$ 18.8
Weighted average period over which compensation expense will be recorded		3 years 6 months
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares granted in period (in shares)	256,467
Granted shares value (in dollars per share)		$ 38.55
Estimated future compensation expense for unvested shares		27.2
Weighted average period over which compensation expense will be recorded		3 years
Number of tranches	2
Restricted stock units \| Vesting on January 28, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percent	50.00%
Restricted stock units \| Vesting on January 28, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percent	50.00%
Share award plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares available for issuance (in shares)		84,000
Employee Stock \| RMR \| Officers and Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense			3.4
Employee Stock \| RMR \| Officers and Employees \| Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares issued (in shares)				130,914
Minimum \| Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of RSU grants grant recipients may earn	0.00%
Maximum \| Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of RSU grants grant recipients may earn	100.00%
General and Administrative Expense \| Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense		$ 4.0