Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481520/505-30-50-4

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- Definition

Share Repurchase Program, Remaining Capacity Under Existing Plan, Terminated Amount

+ References

No definition available.

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481674/830-30-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

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Subsequent Event (Details) - USD ($)	Jul. 22, 2026	Jul. 27, 2026	Jun. 30, 2026	Mar. 31, 2026	Jan. 21, 2026	Jun. 30, 2025	Mar. 31, 2025
Subsequent Event [Line Items]
Stock repurchase program, authorized amount			$ 100,000,000	$ 100,000,000		$ 50,000,000	$ 50,000,000
Terminated S&T Share Repurchase Program \| Subsequent Event
Subsequent Event [Line Items]
Prior share repurchase plane, terminated amount	$ 2,800,000
New S&T Share Repurchase Program
Subsequent Event [Line Items]
Stock repurchase program, authorized amount					$ 100,000,000.0
New S&T Share Repurchase Program \| Subsequent Event
Subsequent Event [Line Items]
Stock repurchase program, authorized amount		$ 100,000,000