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Pension and Retirement Plans - Fair value of plan assets (Details) $ in Thousands, £ in Millions	1 Months Ended
	Oct. 31, 2024 GBP (£)	Dec. 31, 2024 USD ($)	Sep. 30, 2024 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Fair value of the assets		$ 11,592	$ 11,366
Premium payment | £	£ 8.9
Annuity insurance		11,200
Cash on deposit
Defined Benefit Plan Disclosure [Line Items]
Fair value of the assets		11,592	65
Fixed income
Defined Benefit Plan Disclosure [Line Items]
Fair value of the assets			10,388
Equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of the assets		0	913
Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of the assets		11,592	9,042
Level 1 | Cash on deposit
Defined Benefit Plan Disclosure [Line Items]
Fair value of the assets		11,592	65
Level 1 | Fixed income
Defined Benefit Plan Disclosure [Line Items]
Fair value of the assets			8,714
Level 1 | Equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of the assets		0	263
Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of the assets		0	2,324
Level 2 | Cash on deposit
Defined Benefit Plan Disclosure [Line Items]
Fair value of the assets		0	0
Level 2 | Fixed income
Defined Benefit Plan Disclosure [Line Items]
Fair value of the assets			1,674
Level 2 | Equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of the assets		0	650
Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of the assets		0	0
Level 3 | Cash on deposit
Defined Benefit Plan Disclosure [Line Items]
Fair value of the assets		0	0
Level 3 | Equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of the assets		$ 0	$ 0

X

- Definition

The value of buy in bulk annuity insurance policy, pension plan asset.

+ References

No definition available.

+ Details

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X

- Definition

The amount of cash outflow to acquire buy in bulk insurance policy.

+ References

No definition available.

+ Details

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- Definition

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.

+ References

No definition available.

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- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 17
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480482/715-20-55-17

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)(iv)(02)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
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-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
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-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

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