Aggregate number of common shares reserved for future issuance.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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).

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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).

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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.

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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.

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No definition available.

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Number of options outstanding, including both vested and non-vested options.

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-Publisher FASB
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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Percentage of vesting of share-based compensation awards.

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The noncash expense that accounts for the value of stock or unit options distributed to employees as compensation.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
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Net Debt To EBITDA Ratio

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Percentage Of Options Eligible For Exchange Tendered By Employees

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Stock option exchange basis under one-time stock option exchange program

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Stock Plans - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended	9 Months Ended
	Jun. 22, 2015	May 22, 2015	May 07, 2015	Jan. 02, 2016	Oct. 01, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding				0
Stock option expense				$ 12,759
Options To Purchase Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding	734,000	1,700,000
Percentage of options eligible for exchange		99.60%
Weighted-average exercise price	$ 5.25	$ 24.68
Vesting period	3 years
Stock option expense	$ 1,599
Options To Purchase Common Stock \| Vesting on the first anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	25.00%
Options To Purchase Common Stock \| Vesting on the second anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	25.00%
Options To Purchase Common Stock \| Vesting on the third anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	50.00%
Performance-based stock unit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options, granted					290,000
Net debt to EBITDA ratio					450.00%
Other than options, total fair value					$ 3,825
Other than options, weighted average fair value per share					$ 3.19
Performance-based stock unit \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issuable					96,000
Performance-based stock unit \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issuable					478,000
Employees \| Stock Incentive Plan 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock conversion ratio			200.00%
Chief Executive Officer \| Stock Incentive Plan 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock conversion ratio			350.00%