Statement Of Comprehensive Income [Abstract]

Computacenter PLC - Filing #3482161

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	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	2020-01-01 to 2020-12-31
Statement of comprehensive income [abstract]
Profit (loss)	1,200,000 GBP	– GBP	– GBP	– GBP	– GBP	– GBP	185,300,000 GBP	186,500,000 GBP	185,300,000 GBP	153,800,000 GBP	– GBP	– GBP	154,200,000 GBP	– GBP	400,000 GBP	– GBP	153,800,000 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	—	—	—	—	—	—	—	1,200,000 GBP	—	—	—	—	4,300,000 GBP	—	—	—	—	—
Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]
Exchange differences on translation [abstract]
Other comprehensive income, net of tax, exchange differences on translation of foreign operations	—	—	—	—	—	—	—	9,600,000 GBP	—	—	—	—	3,200,000 GBP	—	—	—	—	—
Cash flow hedges [abstract]
Other comprehensive income, net of tax, cash flow hedges	—	—	—	—	—	—	—	700,000 GBP	—	—	—	—	1,600,000 GBP	—	—	—	—	—
Other comprehensive income that will be reclassified to profit or loss, net of tax	—	—	—	—	—	—	—	10,300,000 GBP	—	—	—	—	1,600,000 GBP	—	—	—	—	—
Other comprehensive income	– GBP	– GBP	– GBP	– GBP	– GBP	10,300,000 GBP	9,100,000 GBP	9,100,000 GBP	1,200,000 GBP	4,400,000 GBP	– GBP	– GBP	2,700,000 GBP	1,700,000 GBP	– GBP	– GBP	2,700,000 GBP	– GBP
Comprehensive income	1,200,000 GBP	– GBP	– GBP	– GBP	– GBP	10,300,000 GBP	176,200,000 GBP	177,400,000 GBP	186,500,000 GBP	149,400,000 GBP	– GBP	– GBP	151,500,000 GBP	1,700,000 GBP	400,000 GBP	– GBP	151,100,000 GBP	– GBP
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	—	—	—	—	—	—	176,200,000 GBP	—	—	—	—	151,100,000 GBP	—	—	—	—	—
Comprehensive income, attributable to non-controlling interests	—	—	—	—	—	—	—	1,200,000 GBP	—	—	—	—	400,000 GBP	—	—	—	—	—