Statement Of Changes In Equity [Abstract]

Oxford Instruments PLC - Filing #1669470

Concept	2021-04-01 to 2022-03-31	2021-04-01 to 2022-03-31	2021-04-01 to 2022-03-31	2021-04-01 to 2022-03-31	2021-04-01 to 2022-03-31	As at 2022-03-31	As at 2022-03-31	As at 2022-03-31	As at 2022-03-31	2021-04-01 to 2022-03-31	As at 2022-03-31	As at 2022-03-31	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	2020-04-01 to 2021-03-31	2020-04-01 to 2021-03-31	2020-04-01 to 2021-03-31	2020-04-01 to 2021-03-31	2020-04-01 to 2021-03-31	2020-04-01 to 2021-03-31	As at 2020-03-31	As at 2020-03-31	As at 2020-03-31	As at 2020-03-31	As at 2020-03-31	As at 2020-03-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	—	—	—	—	2 .9 GBP	7. 6 GBP	62 .5 GBP	243. 2 GBP	—	316. 4 GBP	0. 2 GBP	19 4.1 GBP	0. 2 GBP	26 6. 2 GBP	2. 9 GBP	62 .4 GBP	6,600,000 GBP	—	—	—	—	—	—	0. 2 GBP	251 .6 GBP	11 .5 GBP	62. 2 GBP	2,900,000 GBP	1 74 . 8 GBP
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	— GBP	— GBP	38,600,000 GBP	— GBP	— GBP	—	—	—	—	38,600,000 GBP	—	—	—	—	—	—	—	—	— GBP	— GBP	41 . 8 GBP	— GBP	— GBP	41 . 8 GBP	—	—	—	—	—	—
Other comprehensive income	—	—	—	—	—	—	—	—	—	21 .5 GBP	—	—	—	—	—	—	—	—	—	—	30. 2 GBP	—	—	—	—	—	—	—	—	—
Issue of equity	0. 1 GBP	— GBP	— GBP	— GBP	— GBP	—	—	—	—	0. 1 GBP	—	—	—	—	—	—	—	—	— GBP	— GBP	0. 2 GBP	— GBP	0. 2 GBP	— GBP	—	—	—	—	—	—
Dividends recognised as distributions to owners	— GBP	— GBP	12 .3 GBP	— GBP	— GBP	—	—	—	—	12 . 3 GBP	—	—	—	—	—	—	—	—	— GBP	— GBP	— GBP	— GBP	— GBP	— GBP	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	— GBP	— GBP	2,100,000 GBP	— GBP	— GBP	—	—	—	—	2 .1 GBP	—	—	—	—	—	—	—	—	— GBP	— GBP	1,800,000 GBP	— GBP	— GBP	1 .8 GBP	—	—	—	—	—	—