Statement Of Comprehensive Income [Abstract]

NORCROS PLC - Filing #1657803

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	2021-04-01 to 2022-03-31	2021-04-01 to 2022-03-31	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	2020-04-01 to 2021-03-31
Statement of comprehensive income [abstract]
Profit (loss)	— GBP	— GBP	— GBP	2 5 .7 GBP	— GBP	— GBP	25,700,000 GBP	— GBP	— GBP	— GBP	15 .0 GBP	— GBP	15,000,000 GBP	— GBP
Other comprehensive income [abstract]
Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract]
Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans	— GBP	— GBP	— GBP	2 7. 5 GBP	— GBP	— GBP	27,500,000 GBP	— GBP	— GBP	— GBP	2 4 .1 GBP	— GBP	24,100,000 GBP	— GBP
Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]
Exchange differences on translation [abstract]
Gains (losses) on exchange differences on translation of foreign operations, net of tax	— GBP	— GBP	3,600,000 GBP	— GBP	— GBP	— GBP	3,600,000 GBP	5,300,000 GBP	— GBP	— GBP	— GBP	— GBP	5,300,000 GBP	— GBP
Cash flow hedges [abstract]
Gains (losses) on cash flow hedges, net of tax	— GBP	— GBP	— GBP	— GBP	— GBP	3,000,000 GBP	3,000,000 GBP	— GBP	— GBP	— GBP	— GBP	1. 5 GBP	1,500,000 GBP	— GBP
Hedges of net investment in foreign operations [abstract]
Gains (losses) on hedges of net investments in foreign operations, net of tax	—	—	—	—	—	—	3,600,000 GBP	—	—	—	—	—	5,300,000 GBP	—
Other comprehensive income	— GBP	— GBP	3,600,000 GBP	2 7. 5 GBP	— GBP	3,000,000 GBP	34,100,000 GBP	5,300,000 GBP	— GBP	— GBP	2 4 .1 GBP	1. 5 GBP	27,900,000 GBP	— GBP
Comprehensive income	—	—	—	—	—	—	59,800,000 GBP	—	—	—	—	—	42,900,000 GBP	—