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Employee Stock Compensation and Savings Plans - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2015 | Jun. 30, 2011 | Jun. 30, 2005 | Oct. 31, 2000 | Dec. 30, 2023 | Dec. 31, 2022 | Dec. 25, 2021 | Dec. 28, 2013 | Jun. 30, 2023
Total fair value of vested awards |  |  |  |  | $ 77,626 | $ 82,734 | $ 70,796 |  |
Closing stock price (in dollars per share) |  |  |  |  | $ 128.54 |  |  |  |
Total unrecognized compensation cost related to unvested share-based compensation awards |  |  |  |  | $ 133,648 |  |  |  |
Expenses related to other defined contribution plans |  |  |  |  | $ 84,609 | $ 80,435 | $ 71,262 |  |
Restricted Stock Units |  |  |  |  |  |  |  |  |
Number of shares granted (in shares) |  |  |  |  | 1,054,000 | 1,192,000 | 871,000 |  |
Outstanding awards weighted-average remaining contract life |  |  |  |  | 1 year 4 months 9 days |  |  |  |
Outstanding awards aggregate intrinsic values |  |  |  |  | $ 216,667 |  |  |  |
Aggregate intrinsic values |  |  |  |  | 96,301 | $ 74,278 | $ 118,825 |  |
Stock Option & Stock Appreciation Rights |  |  |  |  |  |  |  |  |
Aggregate intrinsic values |  |  |  |  | $ 0 | $ 0 | $ 1,040 |  |
Defined Contribution Retirement Plan [Member] | Garmin International, Inc & Other U.S. - based Subsidiaries Sponsor [Member] |  |  |  |  |  |  |  |  |
Maximum percentage of annual employee compensation eligible to be contributed to retirement plan |  |  |  |  | 50.00% |  |  |  |
2011 Non-employee Directors' Equity Incentive Plan |  |  |  |  |  |  |  |  |
Maximum number of authorized shares available for issuance (in shares) |  | 122,592 |  |  |  |  |  |  | 150,000
Award expiration period |  | 10 years |  |  |  |  |  |  |
Award vesting period |  | 1 year |  |  |  |  |  |  |
Number of shares available for future issuance (in shares) |  |  |  |  | 33,400 |  |  |  |
2011 Non-employee Directors' Equity Incentive Plan | Restricted Stock Units |  |  |  |  |  |  |  |  |
Number of shares granted (in shares) |  |  |  |  | 6,004 | 6,008 | 4,180 |  |
2005 Equity Incentive Plan |  |  |  |  |  |  |  |  |
Maximum number of authorized shares available for issuance (in shares) |  |  | 10,000,000 |  |  |  |  | 13,000,000 |
Number of additional authorized shares issued (in shares) |  |  |  |  |  |  |  | 3,000,000 |
Number of shares available for future issuance (in shares) |  |  |  |  | 1,171,977 |  |  |  |
2005 Equity Incentive Plan | Restricted Stock Units |  |  |  |  |  |  |  |  |
Award vesting period |  |  | 3 years |  |  |  |  |  |
Number of shares granted (in shares) |  |  |  |  | 1,047,934 | 1,185,707 | 866,614 |  |
Description of vesting period |  |  |  |  |  |  | RSUs vest evenly over a period of three years |  |
2005 Equity Incentive Plan | Stock Option & Stock Appreciation Rights |  |  |  |  |  |  |  |  |
Award expiration period |  |  | 10 years |  |  |  |  |  |
Award vesting period |  |  | 5 years |  |  |  |  |  |
Number of shares granted (in shares) |  |  |  |  | 0 | 0 | 0 |  |
2000 Equity Incentive Plan |  |  |  |  |  |  |  |  |
Maximum number of authorized shares available for issuance (in shares) |  |  |  | 7,000,000 |  |  |  |  |
2000 Equity Incentive Plan | Stock Option & Stock Appreciation Rights |  |  |  |  |  |  |  |  |
Award expiration period |  |  |  | 10 years |  |  |  |  |
Award vesting period |  |  |  | 5 years |  |  |  |  |
Number of shares granted (in shares) |  |  |  |  | 0 | 0 | 0 |  |
Employee Stock Purchase Plan |  |  |  |  |  |  |  |  |
Maximum number of authorized shares available for issuance (in shares) | 10,000,000 |  |  |  |  |  |  |  |
Number of shares purchased (in shares) |  |  |  |  | 524,774 | 687,370 | 385,211 |  |
Total shares purchase price |  |  |  |  | $ 43,905 | $ 62,154 | $ 34,936 |  |
Number of shares available for future issuance (in shares) |  |  |  |  | 2,262,760 |  |  |  |
Employee Stock Purchase Plan | Condition One [Member] |  |  |  |  |  |  |  |  |
Purchase price of common stock (fair market value of the stock on the date of purchase) (in percent) | 85.00% |  |  |  |  |  |  |  |
Employee Stock Purchase Plan | Condition Two [Member] |  |  |  |  |  |  |  |  |
Purchase price of common stock (fair market value of the stock on the date of purchase) (in percent) | 85.00% |  |  |  |  |  |  |  |

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