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Stock-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Feb. 11, 2020 | Dec. 29, 2019 | Dec. 30, 2018 | Dec. 31, 2017 | Mar. 31, 2019 | Feb. 14, 2018 | Feb. 15, 2017
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 |  | 3,400 |  |  |  |  |
Tax benefit |  | $ 1.3 | $ 4.4 | $ 4.2 |  |  |
Restricted Stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Award vesting period |  | 4 years |  |  |  |  |
Unrecognized compensation cost, unvested restricted stock |  | $ 6.5 |  |  |  |  |
Compensation cost not yet recognized, period for recognition |  | 1 year 9 months 18 days |  |  |  |  |
Grants in period (in dollars per share) |  | $ 24.76 | $ 28.79 | $ 21.97 |  |  |
Vested in period, fair value |  | $ 3.3 | $ 4.9 | $ 5.8 |  |  |
Granted (in shares) |  | 185 |  |  |  |  |
Weighted average grant date fair value (in dollars per share) |  | $ 24.92 | $ 23.44 |  |  |  |
Total nonvested shares (in shares) |  | 360 | 356 |  |  |  |
Performance Shares |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Granted (in shares) |  | 260 | 222 | 387 |  |  |
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 |  | $ 0.5 |  |  |  |  |
Compensation cost not yet recognized, period for recognition |  | 1 year |  |  |  |  |
Grants in period (in dollars per share) |  | $ 0 |  |  |  |  |
Vested in period, fair value |  | $ 1.4 |  |  |  |  |
Granted (in shares) |  | 0 | 59 | 101 |  |  |
Performance measurement period |  | 3 years | 3 years | 3 years |  |  |
Weighted average grant date fair value (in dollars per share) |  | $ 25.24 | $ 23.56 |  |  |  |
Total nonvested shares (in shares) |  | 114 | 173 |  |  |  |
Performance Shares, Total Shareholder Return | Subsequent Event |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Actual percentage achieved | 0.00% |  |  |  |  |  |
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 | $ 20.16
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) |  | 53 | 45 | 83 |  |  |
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 |  | $ 1.0 |  |  |  |  |
Compensation cost not yet recognized, period for recognition |  | 1 year 10 months 24 days |  |  |  |  |
Vested in period, fair value |  | $ 3.4 |  |  |  |  |
Granted (in shares) |  |  | 118 | 203 |  |  |
Weighted average grant date fair value (in dollars per share) |  | $ 25.54 |  |  |  | $ 28.40 | $ 21.07
Performance Shares, Financial Goals | Subsequent Event |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Actual percentage achieved | 55.00% |  |  |  |  |  |
Stock-based compensation cost |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Stock-based compensation cost |  | $ 5.6 | $ 8.1 | $ 9.1 |  |  |
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 |  |  |  |  |
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 | 177 | 304 |  |  |
Maximum shares eligible to earn | Performance Shares |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Granted (in shares) |  | 413 | 355 | 609 |  |  |
Maximum target percentage allowed under grant |  | 200.00% | 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% |  |  |  |
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) |  | 364 |  |  |  |  |
2018 grant | Performance Shares, Total Shareholder Return |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Total nonvested shares (in shares) |  | 104 |  |  |  |  |
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) |  | $ 21.38 |  |  |  |  |
Total nonvested shares (in shares) |  | 207 |  |  |  |  |
2017 grant | Performance Shares, Total Shareholder Return |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Total nonvested shares (in shares) |  | 0 |  |  |  |  |
2017 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) |  |  |  |  | $ 23.76 |  |
Total nonvested shares (in shares) |  | 69 |  |  |  |  |

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