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Stock-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended |
--- | --- | ---
Jan. 03, 2021 | Dec. 29, 2019 | Dec. 30, 2018 | Feb. 14, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Plan activity adjustment period - Evergreen provision | 5 years |  |  |
Number of shares available for grant (in shares) - Fixed provision | 3,300,000 |  |  |
Tax benefit | $ 0.4 | $ 1.3 | $ 4.4 |
Restricted Stock |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award vesting period | 4 years |  |  |
Unrecognized compensation cost, unvested restricted stock | $ 4.1 |  |  |
Compensation cost not yet recognized, period for recognition | 1 year 7 months 6 days |  |  |
Grants in period (in dollars per share) | $ 15.97 | $ 24.76 | $ 28.79 |
Vested in period, fair value | $ 2.4 | $ 3.3 | $ 4.9 |
Granted (in shares) | 80,000 |  |  |
Weighted average grant date fair value (in dollars per share) | $ 22.74 | $ 24.92 |  |
Total nonvested shares (in shares) | 281,000 | 360,000 |  |
Performance Shares |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Granted (in shares) |  | 260,000 | 222,000 |
Performance measurement period | 3 years | 3 years | 3 years |
Performance Shares, Total Shareholder Return |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Unrecognized compensation cost, unvested restricted stock | $ 0.0 |  |  |
Compensation cost not yet recognized, period for recognition | 0 days |  |  |
Grants in period (in dollars per share) | $ 0 |  |  |
Vested in period, fair value | $ 0.0 |  |  |
Granted (in shares) | 0 |  | 59,000 |
Performance measurement period | 3 years | 3 years | 3 years |
Weighted average grant date fair value (in dollars per share) | $ 31.38 | $ 25.24 |  |
Total nonvested shares (in shares) | 47,000 | 114,000 |  |
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) |  |  |  | $ 31.38
Performance Shares, Single Financial Goal |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award vesting period | 4 years | 4 years | 4 years |
Granted (in shares) | 114,564 | 53,000 | 45,000 |
Performance measurement period | 1 year | 1 year | 1 year |
Performance Shares, Financial Goals |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Unrecognized compensation cost, unvested restricted stock | $ 2.6 |  |  |
Compensation cost not yet recognized, period for recognition | 2 years 6 months |  |  |
Vested in period, fair value | $ 1.8 |  |  |
Granted (in shares) |  |  | 118,000 |
Weighted average grant date fair value (in dollars per share) | $ 22.59 | $ 25.54 |  | $ 28.40
Stock-based compensation cost |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-based compensation cost | $ 3.9 | $ 5.6 | $ 8.1 |
Class A common stock |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Maximum number of shares available for grants - Evergreen provision | 15.00% |  |  |
Maximum number of shares available for grants - Fixed provision | 4,700,000 |  |  |
Performance shares eligible to earn more than target | Performance Shares |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Granted (in shares) |  | 207,000 | 177,000 |
Maximum shares eligible to earn | Performance Shares |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Granted (in shares) |  | 413,000 | 355,000 |
Maximum target percentage allowed under grant |  | 200.00% | 200.00% |
2019 grant | Maximum shares eligible to earn | Performance Shares |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Total nonvested shares (in shares) | 264,160 |  |  |
2018 grant | Performance Shares, Financial Goals |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Weighted average grant date fair value (in dollars per share) | $ 16.99 |  |  |

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