Statement Of Financial Position [Abstract]

Halma PLC - Filing #1899639

Concept	As at 2023-03-31	As at 2023-03-31	As at 2023-03-31	As at 2023-03-31	As at 2023-03-31	As at 2023-03-31	As at 2023-03-31	As at 2023-03-31	As at 2023-03-31	As at 2023-03-31	As at 2022-03-31	As at 2022-03-31	As at 2022-03-31	As at 2022-03-31	As at 2022-03-31	As at 2022-03-31	As at 2022-03-31	As at 2022-03-31	As at 2022-03-31	As at 2022-03-31	As at 2021-04-01	As at 2021-04-01	As at 2021-04-01	As at 2021-04-01	As at 2021-04-01	As at 2021-04-01	As at 2021-04-01	As at 2021-04-01	As at 2021-04-01	As at 2021-04-01	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31
Statement of financial position [abstract]
Assets [abstract]
Property, plant and equipment	222,900,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	194,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Goodwill	1,120,500,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	908,700,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Intangible assets other than goodwill	472,300,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	325,200,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Deferred tax assets	3,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2,400,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Cash and cash equivalents	168,500,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	156,700,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	131,100,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Assets	2,788,400,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2,197,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Equity and liabilities [abstract]
Equity [abstract]
Issued capital	38,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	38,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Retained earnings	1,415,800,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1,256,600,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Share premium	23,600,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	23,600,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Treasury shares	46,100,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	30,700,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Other reserves	4,400,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1,700,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Equity attributable to owners of parent	1,598,800,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1,402,700,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Non-controlling interests	100,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	400,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Equity	1,598,900,000 GBP	23,600,000 GBP	38,000,000 GBP	46,100,000 GBP	200,000 GBP	600,000 GBP	100,000 GBP	1,415,800,000 GBP	162,300,000 GBP	4,400,000 GBP	200,000 GBP	30,700,000 GBP	400,000 GBP	38,000,000 GBP	117,100,000 GBP	23,600,000 GBP	1,403,100,000 GBP	1,256,600,000 GBP	400,000 GBP	1,700,000 GBP	1,052,200,000 GBP	23,600,000 GBP	1,167,600,000 GBP	600,000 GBP	38,000,000 GBP	20,900,000 GBP	700,000 GBP	73,200,000 GBP	– GBP	200,000 GBP	—	– GBP	– GBP	700,000 GBP	600,000 GBP	200,000 GBP	13,600,000 GBP	20,900,000 GBP	1,065,800,000 GBP	38,000,000 GBP	1,167,600,000 GBP	– GBP	– GBP	– GBP	– GBP	13,600,000 GBP	13,600,000 GBP	– GBP	– GBP	73,200,000 GBP	23,600,000 GBP
Liabilities [abstract]
Deferred tax liabilities	70,200,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	58,500,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Liabilities	1,189,500,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	793,900,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—