Statement Of Financial Position [Abstract]

Oxford Instruments PLC - Filing #1669474

Concept	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 2021-03-31	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 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 financial position [abstract]
Assets [abstract]
Property, plant and equipment	—	—	—	—	31 .7 GBP	—	—	—	—	2 1.1 GBP	—	—	—	—	—	—	—	—
Right-of-use assets	—	—	—	—	1 7. 9 GBP	—	—	—	—	7. 3 GBP	—	—	—	—	—	—	—	—
Current tax assets	—	—	—	—	800,000 GBP	—	—	—	—	1 .9 GBP	—	—	—	—	—	—	—	—
Deferred tax assets	—	—	—	—	13,700,000 GBP	—	—	—	—	13 .1 GBP	—	—	—	—	—	—	—	—
Cash and cash equivalents	—	—	—	—	96,400,000 GBP	—	—	—	—	128 .0 GBP	—	—	—	—	—	—	—	—
Assets	—	—	—	—	523. 9 GBP	—	—	—	—	45 0.7 GBP	—	—	—	—	—	—	—	—
Equity and liabilities [abstract]
Equity [abstract]
Issued capital	—	—	—	—	2,900,000 GBP	—	—	—	—	2,900,000 GBP	—	—	—	—	—	—	—	—
Retained earnings	—	—	—	—	243. 2 GBP	—	—	—	—	194 .1 GBP	—	—	—	—	—	—	—	—
Share premium	—	—	—	—	62 .5 GBP	—	—	—	—	62 .4 GBP	—	—	—	—	—	—	—	—
Other reserves	—	—	—	—	0. 2 GBP	—	—	—	—	0. 2 GBP	—	—	—	—	—	—	—	—
Equity	2 .9 GBP	7. 6 GBP	62 .5 GBP	243. 2 GBP	316. 4 GBP	0. 2 GBP	6,600,000 GBP	19 4.1 GBP	0. 2 GBP	26 6. 2 GBP	2. 9 GBP	62 .4 GBP	0. 2 GBP	11 .5 GBP	251 .6 GBP	62. 2 GBP	2,900,000 GBP	1 74 . 8 GBP
Liabilities [abstract]
Current tax liabilities	—	—	—	—	4,500,000 GBP	—	—	—	—	6. 2 GBP	—	—	—	—	—	—	—	—
Deferred tax liabilities	—	—	—	—	15,400,000 GBP	—	—	—	—	4,900,000 GBP	—	—	—	—	—	—	—	—
Liabilities	—	—	—	—	2 0 7. 5 GBP	—	—	—	—	184 .5 GBP	—	—	—	—	—	—	—	—
Equity and liabilities	—	—	—	—	523. 9 GBP	—	—	—	—	45 0.7 GBP	—	—	—	—	—	—	—	—