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Employee Benefit Plans [Line Items]

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Non Vested Shares Expected To Vest Number

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No definition available.

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- Definition

Share based compensation arrangement by share based payment award equity instruments other than options vested issuable after service separation number.

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- Definition

Share based compensation arrangement by share based payment award fair value assumptions anticipated rate of forfeitures against actual

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Forfeiture Rate

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No definition available.

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- Definition

Share-based compensation arrangement by share-based payment award, options, unvested shares

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No definition available.

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- Definition

Share Based Compensation Nonvested Option Awards Compensation Cost Not Yet Recognized Weighted Average Period for Recognition

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- Definition

Stock option grants, exercise price, minimum percentage on fair market value

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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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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.

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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)
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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

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=6415400&loc=d3e5070-113901

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

+ 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 (d)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ 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 (f)(2)(iii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

No definition available.

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The estimated measure of the minimum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

No definition available.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ 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 (f)(2)(iv)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option 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)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(2)
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- Definition

Net number of share options (or share units) granted during the 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)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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

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- Definition

Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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

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- Definition

As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option 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 (e)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Period from grant date that an equity-based award expires, 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)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Expected term of share-based compensation awards, 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 S99
-Paragraph 1
-Subparagraph (SAB TOPIC 14.D.2)
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-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14
-Section D
-Subsection 2

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
	Nov. 05, 2013	Dec. 26, 2015	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2007	Dec. 29, 2012
Employee Benefit Plans [Line Items]
Risk-free interest rate				1.69%
Expected life, years				6 years
Dividend yield				0.00%
Expected volatility rate, minimum				61.00%
Stock option grants, exercise price, minimum percentage on fair market value					100.00%
Number of option granted during period		0	0	2,003,000
Weighted average grant date fair value of options granted				$ 3.00
Expected volatility rate, maximum				69.00%
Anticipated rate of forfeitures against actual				5.00%
Intrinsic value of options exercised		$ 12.0	$ 27.0	$ 10.0
Intrinsic value of options outstanding		8.0
Intrinsic value of options exercisable		8.0
Stock-based compensation expense not yet recognized relating to non-vested awards		$ 1.8
Stock-based compensation expense relating to non-vested stock option awards, weighted-average recognition period, years		10 months 24 days
Number of unvested stock option shares		700,000
Number of stock option shares estimated to vest		700,000
Number of exercisable shares		5,100,000	6,700,000
Long Term Stock Incentive Plan
Employee Benefit Plans [Line Items]
Risk-free interest rate	0.42%
Expected life, years	2 years 4 months 2 days
Dividend yield	0.00%
Expected volatility rate, minimum	52.18%
Anticipated rate of forfeitures against actual	5.00%
Performance Based Stock Incentive Program
Employee Benefit Plans [Line Items]
Award vesting period		3 years
Stock-based compensation expense not yet recognized relating to non-vested awards		$ 30.0
Shares granted in period		2,745,303	5,289,047	4,317,314
Stock-based compensation expense relating to non-vested awards, weighted-average recognition period, years		1 year 10 months 24 days
Nonvested shares		8,589,114	6,808,964	3,076,292		1,030,753
Estimated number of shares expected to vest		8,000,000
Fair value of shares vested		$ 3.0
OfficeMax
Employee Benefit Plans [Line Items]
Merger agreement, new shares of common stock exchange ratio	2.69
Restricted Stock
Employee Benefit Plans [Line Items]
Award vesting period		3 years
Stock-based compensation expense not yet recognized relating to non-vested awards		$ 29.0
Shares granted in period		2,900,000
Stock-based compensation expense relating to non-vested awards, weighted-average recognition period, years		1 year 9 months 18 days
Nonvested shares		7,900,000
Estimated number of shares expected to vest		7,600,000
Fair value of shares vested		$ 31.0
Share Granted To Directors As Compensation
Employee Benefit Plans [Line Items]
Shares granted in period		100,000
Shares outstanding, Number		1,700,000
Restricted Stock and Restricted Stock Units
Employee Benefit Plans [Line Items]
Shares granted in period		2,886,640	5,809,821	4,884,848
Nonvested shares		9,588,889	10,708,372	10,207,546		5,459,900
Minimum \| Prior Plans
Employee Benefit Plans [Line Items]
Award vesting period					1 year
Minimum \| Prior Plans \| After the date of grant
Employee Benefit Plans [Line Items]
Award vesting period					1 year
Maximum \| Prior Plans
Employee Benefit Plans [Line Items]
Award vesting period					5 years
Stock options expiration period					10 years
Maximum \| Prior Plans \| After the date of grant
Employee Benefit Plans [Line Items]
Award vesting period					3 years