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Fiscal year through which the Company expects to recognize the cost of unvested options awarded to employees that have been granted as of the balance sheet date.

+ References

No definition available.

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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

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-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

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- Definition

Aggregate number of common shares reserved for future issuance.

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

+ References

No definition available.

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

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-Section 45

-Paragraph 28

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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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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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Date the equity-based award expires, in CCYY-MM-DD format.

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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Number of new stock issued during the period.

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Stock Based Compensation - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended			0 Months Ended
	Aug. 31, 2013	Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012	Oct. 09, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-voting Common stock conversion basis ratio		1pbpb_CommonStockConversionBasisRatio
Weighted average share value of unrestricted common stock	$ 100,000		$ 10,000,000
Recognized stock-based compensation expense		2,543,000us-gaap_ShareBasedCompensation	11,610,000us-gaap_ShareBasedCompensation	2,825,000us-gaap_ShareBasedCompensation
Unrecognized stock compensation expense		5,500,000	5,500,000	1,600,000
Unrecognized stock compensation expense, recognition period		Through 2018
Unrestricted Common Stock Granted [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized stock-based compensation expense		400,000
IPO [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of unrestricted common stock					8,625,000
Recognized stock-based compensation expense			7,600,000
Non-Employee Board Of Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of unrestricted common stock		28,240
Weighted average grant-date share price		$ 15.29
Weighted average share value of unrestricted common stock		$ 400,000
2001 Equity Incentive Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock reserved for issuance		746,749
2001 Equity Incentive Plans [Member] \| Non-Voting Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock issued to key executive		500,000
2013 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock reserved for issuance		840,437
Options granted		712,767
2001 and 2004 Equity Incentive Plans and 2013 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price of options outstanding, lower limit		$ 7.00
Exercise price of options outstanding, higher limit		$ 20.53
2001 and 2004 Equity Incentive Plans and 2013 Long-Term Incentive Plan [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercisable period from the date of grant		10 years
Options issued and outstanding, last expiration date		Dec. 31, 2024
Options vesting period		5 years