Disclosure Of Income Tax [Text Block]

Spirax-Sarco Engineering PLC - Filing #1871846

Concept	As at 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31
Disclosure of income tax [text block]	—	—	—		—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Major components of tax expense (income) [abstract]
Tax expense (income)	—	—	—	83,100,000 GBP	—	—	9,400,000 GBP	92,500,000 GBP	—	—	—	—	—	—	—	—	—	4,300,000 GBP	83,900,000 GBP	—	79,600,000 GBP	—
Income tax relating to components of other comprehensive income [abstract]
Income tax relating to remeasurements of defined benefit plans included in other comprehensive income	—	– GBP	– GBP	1,800,000 GBP	1,800,000 GBP	– GBP	—	—	1,800,000 GBP	– GBP	– GBP	– GBP	– GBP	8,900,000 GBP	—	– GBP	– GBP	—	—	– GBP	8,900,000 GBP	8,900,000 GBP
Disclosure of temporary difference, unused tax losses and unused tax credits [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of temporary difference, unused tax losses and unused tax credits [abstract]
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets and liabilities [abstract]
Deferred tax assets	69,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	46,100,000 GBP	—	—	—	—	—	—	—
Deferred tax liabilities	128,100,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	81,800,000 GBP	—	—	—	—	—	—	—
Reconciliation of accounting profit multiplied by applicable tax rates [abstract]