Share-Based Compensation - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation awards	$ 12.4	$ 2.9	$ 12.8	$ 6.2
Exercise of stock options, Shares	0	0	0	0
Thermon Group Holdings, Inc. [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation awards			$ 8.5
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted stock awards granted	25,243	203,000	251,712	590,000
Number of Options, Granted	0	0	17,563	67,000

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

Number of share options (or share units) exercised during the current period.

+ References

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