Financial instruments (Details) - Schedule of financial assets, other than cash and short-term deposits - GBP (£) £ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt instruments at amortized cost
Trade receivables	£ 7,243	£ 291
Contract assets	599	8
Lease deposits	2,653	1,675
Total financial assets	£ 10,495	£ 1,974

The amount of an entity’s right to consideration in exchange for goods or services that the entity has transferred to a customer, when that right is conditioned on something other than the passage of time (for example, the entity’s future performance).

No definition available.

Name:	czoo_ContractingAssets
Namespace Prefix:	czoo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant