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Subsequent Events (Details) |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Mar. 03, 2022 $ / shares | Feb. 28, 2022 colleague | Jan. 01, 2022 $ / shares | Jan. 02, 2021 $ / shares | Dec. 28, 2019 $ / shares | Feb. 07, 2021 USD ($)
Subsequent Events |  |  |  |  |  |
Additional number of shares authorized to repurchase | $ |  |  |  |  |  | $ 20,000,000
Common share quarterly cash dividend declared (in dollars per share) |  |  | $ 1.09 | $ 0.95 | $ 0.83 |
Subsequent Events |  |  |  |  |  |
Subsequent Events |  |  |  |  |  |
Common share quarterly cash dividend declared (in dollars per share) | $ 0.31 |  |  |  |  |
Subsequent Events | Welch Consulting, Ltd. |  |  |  |  |  |
Subsequent Events |  |  |  |  |  |
Number of new colleagues | colleague |  | 45 |  |  |  |

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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 + Details
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