Statement Of Financial Position [Abstract]

Spirax-Sarco Engineering PLC - Filing #1871845

Concept	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-01-01	As at 2022-01-01	As at 2022-01-01	As at 2022-01-01	As at 2022-01-01	As at 2022-01-01	As at 2022-01-01	As at 2022-01-01	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01
Statement of financial position [abstract]
Assets [abstract]
Property, plant and equipment	384,500,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	277,400,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—
Right-of-use assets	67,200,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	62,900,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—
Goodwill	703,300,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	411,200,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—
Intangible assets other than goodwill	500,300,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	255,700,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—
Investments accounted for using equity method	– GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	– GBP	—	—	—	—	—	—	—	—	—	—	—	—	—
Deferred tax assets	69,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	46,100,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—
Cash and cash equivalents	328,900,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	274,600,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—
Assets	2,784,900,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1,863,200,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—
Equity and liabilities [abstract]
Equity [abstract]
Issued capital	19,800,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	19,800,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—
Retained earnings	1,067,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	961,100,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—
Share premium	88,100,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	86,300,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—
Other reserves	23,400,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	17,700,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—
Equity attributable to owners of parent	1,169,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1,009,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—
Non-controlling interests	800,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—
Equity	1,169,800,000 GBP	23,400,000 GBP	800,000 GBP	88,100,000 GBP	1,067,000,000 GBP	19,800,000 GBP	17,500,000 GBP	1,169,000,000 GBP	40,500,000 GBP	1,009,000,000 GBP	961,100,000 GBP	86,300,000 GBP	19,800,000 GBP	1,000,000 GBP	1,010,000,000 GBP	17,700,000 GBP	961,100,000 GBP	17,700,000 GBP	1,010,000,000 GBP	1,009,000,000 GBP	86,300,000 GBP	1,000,000 GBP	40,500,000 GBP	19,800,000 GBP	33,700,000 GBP	19,800,000 GBP	852,300,000 GBP	782,800,000 GBP	2,400,000 GBP	84,800,000 GBP	851,300,000 GBP	1,000,000 GBP
Liabilities [abstract]
Deferred tax liabilities	128,100,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	81,800,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—
Liabilities	1,615,100,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	853,200,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—
Equity and liabilities	2,784,900,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1,863,200,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—