| Pay vs Performance Disclosure - USD ($) | 12 Months Ended |
| Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 |
| Pay vs Performance Disclosure [Table] | | | |
| Pay vs Performance [Table Text Block] | Value of Initial Average Fixed $100 Summary Average Investment Based Summary Compensation Compensation Compensation On: 4 Compensation Actually Table Total for Actually Paid Peer Post-MIP Table Total for Paid to Non-PEO to Non-PEO Group Net Operating PEO 1 PEO 1,2,3 NEOs 1 NEOs 1,2,3 TSR TSR Income Income 5 Year ($) ($) ($) ($) ($) ($) ($MM) ($MM) 2022 5,635,061 (1,661,259) 1,252,937 327,652 135.34 117.68 69.3 155.9 2021 7,239,979 14,304,977 1,790,153 2,875,770 210.18 131.82 125.0 176.4 2020 6,378,193 9,125,521 1,498,433 1,813,687 137.38 117.18 60.6 122.8 1 2 3 Summary Exclusion of Stock Compensation Compensation Table Awards for Inclusion of Equity Actually Paid to Total for Mr. Lynch Mr. Lynch Values for Mr. Lynch Mr. Lynch Year ($) ($) ($) ($) 2022 5,635,061 (4,600,046) (2,696,274) (1,661,259) 2021 7,239,979 (3,999,979) 11,064,977 14,304,977 2020 6,378,193 (3,400,100) 6,147,428 9,125,521 Average Summary Average Compensation Table Average Exclusion of Average Inclusion Compensation Total for Non-PEO Stock Awards for of Equity Values Actually Paid to Non- NEOs Non-PEO NEOs for Non-PEO NEOs PEO NEOs Year ($) ($) ($) ($) 2022 1,252,937 (712,604) (212,681) 327,652 2021 1,790,153 (536,506) 1,622,123 2,875,770 2020 1,498,433 (588,084) 903,338 1,813,687 The figures in the Inclusion of Equity Values columns above are derived from the dollar values set forth in the following tables. Year-End Fair Change in Change in Fair Value of Equity Fair Value Value from Value of Awards from Last Last Day of Dividends or Granted Day of Prior Prior Year to Fair Value at Other During Year Year to Last Vesting-Date Fair Vesting Date Last Day of Earnings Paid That Remained Day of Year Value of Equity of Unvested Prior Year of on Equity Total Unvested as of of Unvested Awards Granted Equity Awards Equity Awards Awards Not Inclusion of Last Day of Equity During Year that that Vested Forfeited Otherwise Equity Year for Awards for Vested During During Year During Year Included for Values for Mr. Lynch Mr. Lynch Year for Mr. Lynch for Mr. Lynch for Mr. Lynch Mr. Lynch Mr. Lynch Year ($) ($) ($) ($) ($) ($) ($) 2022 3,243,035 (5,380,606) — (558,703) — — (2,696,274) 2021 6,376,419 3,800,601 — 887,958 — — 11,064,977 2020 5,490,832 656,596 — — — — 6,147,428 Average Average Year Average Change in Fair End Fair Value Change in Fair Average Value from of Equity Value from Vesting-Date Last Day of Average Fair Average Value Awards Last Day of Fair Value of Prior Year to Value at Last of Dividends Granted Prior Year to Equity Awards Vesting Date Day of Prior or Other During Year Last Day of Granted of Unvested Year of Equity Earnings Paid that Remained Year of During Year Equity Awards Awards on Equity Total Average Unvested as of Unvested that Vested that Vested Forfeited Awards Not Inclusion of Last Day of Equity Awards During Year During Year During Year Otherwise Equity Values Year for Non- for Non-PEO for Non-PEO for Non-PEO for Non-PEO Included for for Non-PEO PEO NEOs NEOs NEOs NEOs NEOs Non- PEO NEOs NEOs Year ($) ($) ($) ($) ($) ($) ($) 2022 524,251 (542,889) — (194,044) — — (212,681) 2021 846,493 676,199 — 99,431 — — 1,622,123 2020 713,465 124,644 — 65,228 — — 903,338 For the equity values included in the above tables, the valuation assumptions used to calculate fair values did not materially differ from those disclosed at the time of the grant. 4 5 See Annex A to this Proxy Statement for a reconciliation of non-GAAP financial measures to our results as reported under GAAP. This performance measure may not have been the most important financial performance measure for fiscal years 2021 and 2020 and we may determine a different financial performance measure to be the most important financial performance measure in future years. | | |
| Company Selected Measure Name | 5 See Annex A to this Proxy Statement for a reconciliation of non-GAAP financial measures to our results as reported under GAAP. This performance measure may not have been the most important financial performance measure for fiscal years 2021 and 2020 and we may determine a different financial performance measure to be the most important financial performance measure in future years. | | |
| Named Executive Officers, Footnote [Text Block] | 1 | | |
| Peer Group Issuers, Footnote [Text Block] | 4 | | |
| PEO Total Compensation Amount | $ 5,635,061 | $ 7,239,979 | $ 6,378,193 |
| PEO Actually Paid Compensation Amount | $ (1,661,259) | 14,304,977 | 9,125,521 |
| Adjustment To PEO Compensation, Footnote [Text Block] | Summary Exclusion of Stock Compensation Compensation Table Awards for Inclusion of Equity Actually Paid to Total for Mr. Lynch Mr. Lynch Values for Mr. Lynch Mr. Lynch Year ($) ($) ($) ($) 2022 5,635,061 (4,600,046) (2,696,274) (1,661,259) 2021 7,239,979 (3,999,979) 11,064,977 14,304,977 2020 6,378,193 (3,400,100) 6,147,428 9,125,521 Year-End Fair Change in Change in Fair Value of Equity Fair Value Value from Value of Awards from Last Last Day of Dividends or Granted Day of Prior Prior Year to Fair Value at Other During Year Year to Last Vesting-Date Fair Vesting Date Last Day of Earnings Paid That Remained Day of Year Value of Equity of Unvested Prior Year of on Equity Total Unvested as of of Unvested Awards Granted Equity Awards Equity Awards Awards Not Inclusion of Last Day of Equity During Year that that Vested Forfeited Otherwise Equity Year for Awards for Vested During During Year During Year Included for Values for Mr. Lynch Mr. Lynch Year for Mr. Lynch for Mr. Lynch for Mr. Lynch Mr. Lynch Mr. Lynch Year ($) ($) ($) ($) ($) ($) ($) 2022 3,243,035 (5,380,606) — (558,703) — — (2,696,274) 2021 6,376,419 3,800,601 — 887,958 — — 11,064,977 2020 5,490,832 656,596 — — — — 6,147,428 | | |
| Non-PEO NEO Average Total Compensation Amount | $ 1,252,937 | 1,790,153 | 1,498,433 |
| Non-PEO NEO Average Compensation Actually Paid Amount | $ 327,652 | 2,875,770 | 1,813,687 |
| Adjustment to Non-PEO NEO Compensation Footnote [Text Block] | Average Summary Average Compensation Table Average Exclusion of Average Inclusion Compensation Total for Non-PEO Stock Awards for of Equity Values Actually Paid to Non- NEOs Non-PEO NEOs for Non-PEO NEOs PEO NEOs Year ($) ($) ($) ($) 2022 1,252,937 (712,604) (212,681) 327,652 2021 1,790,153 (536,506) 1,622,123 2,875,770 2020 1,498,433 (588,084) 903,338 1,813,687 Average Average Year Average Change in Fair End Fair Value Change in Fair Average Value from of Equity Value from Vesting-Date Last Day of Average Fair Average Value Awards Last Day of Fair Value of Prior Year to Value at Last of Dividends Granted Prior Year to Equity Awards Vesting Date Day of Prior or Other During Year Last Day of Granted of Unvested Year of Equity Earnings Paid that Remained Year of During Year Equity Awards Awards on Equity Total Average Unvested as of Unvested that Vested that Vested Forfeited Awards Not Inclusion of Last Day of Equity Awards During Year During Year During Year Otherwise Equity Values Year for Non- for Non-PEO for Non-PEO for Non-PEO for Non-PEO Included for for Non-PEO PEO NEOs NEOs NEOs NEOs NEOs Non- PEO NEOs NEOs Year ($) ($) ($) ($) ($) ($) ($) 2022 524,251 (542,889) — (194,044) — — (212,681) 2021 846,493 676,199 — 99,431 — — 1,622,123 2020 713,465 124,644 — 65,228 — — 903,338 | | |
| Compensation Actually Paid vs. Total Shareholder Return [Text Block] | Relationship Between PEO and Non-PEO NEO Compensation Actually Paid and Company Total Shareholder Return (“TSR”) and Peer Group TSR The following chart sets forth the relationship between Compensation Actually Paid to our PEO, the average of Compensation Actually Paid to our Non-PEO NEOs, the Company’s cumulative TSR over the three most recently completed fiscal years, and the cumulative TSR for the NASDAQ Stocks – Eating and Drinking Index over the same period. | | |
| Compensation Actually Paid vs. Net Income [Text Block] | Relationship Between PEO and Non-PEO NEO Compensation Actually Paid and Net Income The following chart sets forth the relationship between Compensation Actually Paid to our PEO, the average of Compensation Actually Paid to our Non-PEO NEOs, and our net income during the three most recently completed fiscal years. | | |
| Compensation Actually Paid vs. Company Selected Measure [Text Block] | Relationship Between PEO and Non-PEO NEO Compensation Actually Paid and Post-MIP Operating Income The following chart sets forth the relationship between Compensation Actually Paid to our PEO, the average of Compensation Actually Paid to our Non-PEO NEOs, and our Post-MIP Operating Income during the three most recently completed fiscal years. | | |
| Tabular List [Table Text Block] | Post-MIP Operating Income Global Net Development (New Store Openings – Store Closings) Comparative Same-Store Sales Growth Relative Total Shareholder Return 2022 MIP ESG Metric | | |
| Total Shareholder Return Amount | $ 135.34 | 210.18 | 137.38 |
| Peer Group Total Shareholder Return Amount | 117.68 | 131.82 | 117.18 |
| Net Income (Loss) | $ 69,300,000 | $ 125,000,000 | $ 60,600,000 |
| Company Selected Measure Amount | 155,900,000 | 176,400,000 | 122,800,000 |
| PEO Name | Robert M. Lynch | Robert M. Lynch | Robert M. Lynch |
| Measure [Axis]: 1 | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Measure Name | Post-MIP Operating Income | | |
| Non-GAAP Measure Description [Text Block] | See Annex A to this Proxy Statement for a reconciliation of non-GAAP financial measures to our results as reported under GAAP. This performance measure may not have been the most important financial performance measure for fiscal years 2021 and 2020 and we may determine a different financial performance measure to be the most important financial performance measure in future years. | | |
| Measure [Axis]: 2 | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Measure Name | Global Net Development (New Store Openings – Store Closings) | | |
| Measure [Axis]: 3 | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Measure Name | Comparative Same-Store Sales Growth | | |
| Measure [Axis]: 4 | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Measure Name | Relative Total Shareholder Return | | |
| Measure [Axis]: 5 | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Measure Name | 2022 MIP ESG Metric | | |
| PEO [Member] | Exclusion of Stock Awards | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | $ (4,600,046) | $ (3,999,979) | $ (3,400,100) |
| PEO [Member] | Inclusion of Equity Values | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | (2,696,274) | 11,064,977 | 6,147,428 |
| PEO [Member] | Year-End Fair Value of Equity Awards Granted During Year That Remained Unvested as of Last Day of Year | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | 3,243,035 | 6,376,419 | 5,490,832 |
| PEO [Member] | Change in Fair Value from Last Day of Prior Year to Last Day of Year of Unvested Equity Awards | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | (5,380,606) | 3,800,601 | 656,596 |
| PEO [Member] | Change in Fair Value from Last Day of Prior Year to Vesting Date of Unvested Equity Awards that Vested During Year | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | (558,703) | 887,958 | |
| Non-PEO NEO [Member] | Exclusion of Stock Awards | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | (712,604) | (536,506) | (588,084) |
| Non-PEO NEO [Member] | Inclusion of Equity Values | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | (212,681) | 1,622,123 | 903,338 |
| Non-PEO NEO [Member] | Year-End Fair Value of Equity Awards Granted During Year That Remained Unvested as of Last Day of Year | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | 524,251 | 846,493 | 713,465 |
| Non-PEO NEO [Member] | Change in Fair Value from Last Day of Prior Year to Last Day of Year of Unvested Equity Awards | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | (542,889) | 676,199 | 124,644 |
| Non-PEO NEO [Member] | Change in Fair Value from Last Day of Prior Year to Vesting Date of Unvested Equity Awards that Vested During Year | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | $ (194,044) | $ 99,431 | $ 65,228 |
