Statement Of Comprehensive Income [Abstract]

Croda International PLC - Filing #1586580

Concept	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31
Statement of comprehensive income [abstract]
Profit (loss)	2,000,000 GBP	– GBP	28,000,000 GBP	350,800,000 GBP	– GBP	– GBP	322,800,000 GBP	320,800,000 GBP	201,600,000 GBP	– GBP	201,600,000 GBP	– GBP	– GBP	228,200,000 GBP	26,600,000 GBP	– GBP
Other comprehensive income [abstract]
Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract]
Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans	—	—	—	—	—	—	40,600,000 GBP	—	—	—	51,300,000 GBP	—	—	—	—	—
Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract]
Cash flow hedges [abstract]
Other comprehensive income, before tax, cash flow hedges	—	—	—	—	—	—	3,700,000 GBP	—	—	—	– GBP	—	—	—	—	—
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract]
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss	—	—	—	—	—	—	8,300,000 GBP	—	—	—	9,700,000 GBP	—	—	—	—	—
Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract]
Income tax relating to components of other comprehensive income that will be reclassified to profit or loss	—	—	—	—	—	—	400,000 GBP	—	—	—	– GBP	—	—	—	—	—
Other comprehensive income	100,000 GBP	– GBP	—	—	63,100,000 GBP	– GBP	30,700,000 GBP	32,300,000 GBP	41,600,000 GBP	– GBP	26,600,000 GBP	100,000 GBP	– GBP	—	—	15,100,000 GBP
Comprehensive income	2,100,000 GBP	– GBP	—	—	63,100,000 GBP	– GBP	292,100,000 GBP	353,100,000 GBP	243,200,000 GBP	– GBP	228,200,000 GBP	100,000 GBP	– GBP	—	—	15,100,000 GBP
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	—	—	—	—	—	290,000,000 GBP	—	—	—	228,100,000 GBP	—	—	—	—	—
Comprehensive income, attributable to non-controlling interests	—	—	—	—	—	—	2,100,000 GBP	—	—	—	100,000 GBP	—	—	—	—	—