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Stock-Based Compensation - Narrative (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Jan. 01, 2017 | Jan. 03, 2016 | Dec. 28, 2014 | Feb. 17, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Plan activity adjustment period | 5 years |  |  |
Number of shares available for grant (in shares) | 2,444,136 |  |  |
Tax benefit | $ 3,900,000 | $ 3,000,000 | $ 2,900,000 |
Award vesting period | 3 years |  |  |
Term to exercise stock option before expiration (not more than) | 10 years |  |  |
Grants in period (in shares) | 0 | 0 | 0 |
Outstanding (in shares) | 0 | 12,000 |  |
Unrecognized compensation cost, unvested stock options | $ 0 |  |  |
Exercises in period (in shares) | 0 | 0 | 0 |
Windfall |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Excess tax benefit from share-based compensation, financing activities | $ 500,000 | $ 200,000 | $ 400,000 |
Non-Employee Director |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Outstanding (in shares) |  | 12,000 |  |
Performance Shares |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Granted (in shares) | 331,500 | 375,000 |  |
Performance Shares, Financial Goals |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award vesting period | 3 years |  |  |
Unrecognized compensation cost, unvested restricted stock | $ 2,100,000 |  |  |
Compensation cost not yet recognized, period for recognition | 1 year 3 months 18 days |  |  |
Granted (in shares) | 248,625 | 250,000 |  |
Weighted average grant date fair value (in dollars per share) | $ 22.04 | $ 16.31 |  | $ 15.85
Total nonvested shares (in shares) | 497,250 | 287,896 |  |
Performance measurement period |  | 1 year |  |
Additional requisite service period |  | 2 years |  |
Actual percentage achieved |  | 115.00% |  |
Actual shares achieved (in shares) |  | 287,896 |  |
Performance Shares, Total Shareholder Return |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Unrecognized compensation cost, unvested restricted stock | $ 1,400,000 |  |  |
Compensation cost not yet recognized, period for recognition | 1 year 7 months 6 days |  |  |
Granted (in shares) | 82,875 | 125,000 |  |
Total nonvested shares (in shares) | 165,750 |  |  |
Performance measurement period | 3 years | 3 years |  |
Performance Shares, Total Shareholder Return | Monte Carlo Fair Value |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Weighted average grant date fair value (in dollars per share) | $ 19.73 | $ 16.01 |  |
Restricted Stock |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award vesting period | 4 years |  |  |
Unrecognized compensation cost, unvested restricted stock | $ 8,500,000 |  |  |
Compensation cost not yet recognized, period for recognition | 1 year 6 months |  |  |
Grants in period (in dollars per share) | $ 17.08 | $ 15.85 | $ 15.63 |
Vested in period, fair value | $ 6,400,000 | $ 5,400,000 | $ 7,100,000 |
Granted (in shares) | 142,100 |  |  |
Weighted average grant date fair value (in dollars per share) | $ 16.58 | $ 16.30 |  |
Total nonvested shares (in shares) | 653,243 | 885,882 |  |
Stock-based compensation cost |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-based compensation cost | $ 10,200,000 | $ 7,900,000 | $ 7,600,000 |
Class A common stock |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Maximum number of shares available for grants | 15.00% |  |  |
Maximum shares eligible to earn | Performance Shares |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Granted (in shares) | 663,000 | 750,000 |  |
Maximum target percentage allowed under grant | 200.00% | 200.00% |  |
Maximum shares eligible to earn | Performance Shares, Financial Goals |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Maximum target percentage allowed under grant | 200.00% | 200.00% |  |
Maximum shares eligible to earn | Performance Shares, Total Shareholder Return |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Maximum target percentage allowed under grant | 200.00% | 200.00% |  |
Total nonvested shares (in shares) |  | 250,000 |  |

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- Definition The number of shares under a share-based award plan other than a stock option that were achieved during the reporting period due to the approval of the actual performance achievement of participants. + References No definition available. + Details
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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=6415400&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=6415400&loc=d3e5070-113901 + Details
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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 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 + Details
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- Definition The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income 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 (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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 + Details
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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=6415400&loc=d3e5070-113901 + Details
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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 + Details
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- Definition 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. + 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 + Details
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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 + Details
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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. + References 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 + Details
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