Common Stock Repurchases - Summary of Shares Repurchase and Cancellation (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2025	Jun. 29, 2024	Jun. 28, 2025	Jun. 29, 2024
Common Stock Repurchases
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares repurchased and canceled (in shares)	0	1,245	2,070	9,004
Total cost of shares repurchased and canceled	$ 0	$ 113	$ 261	$ 786
Average price per share (in dollars per share)	$ 0	$ 90.86	$ 126.08	$ 87.34
Share Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares repurchased and canceled (in shares)	29,123	272,145	122,923	582,318
Total cost of shares repurchased and canceled	$ 3,482	$ 24,891	$ 15,300	$ 51,354
Average price per share (in dollars per share)	$ 119.56	$ 91.46	$ 124.47	$ 88.19

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

- Definition

Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References + Details

Dorman Products, Inc. 10-Q