Statement Of Cash Flows [Abstract]

Derwent London PLC - Filing #1875168

Concept	As at 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	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	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 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	As at 2020-12-31	As at 2020-12-31
Statement of cash flows [abstract]
Cash flows from (used in) operating activities [abstract]
Profit (loss)	—	– GBP	– GBP	280,500,000 GBP	280,500,000 GBP	– GBP	– GBP	– GBP	34,300,000 GBP	– GBP	34,300,000 GBP	—	– GBP	34,300,000 GBP	280,500,000 GBP	– GBP	1,500,000 GBP	– GBP	252,300,000 GBP	– GBP	—	11,600,000 GBP	– GBP	—	– GBP	– GBP	– GBP	11,600,000 GBP	11,600,000 GBP	– GBP	253,800,000 GBP	252,300,000 GBP	—	—
Interest paid, classified as operating activities	—	—	—	33,700,000 GBP	—	—	—	—	26,600,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	19,400,000 GBP	—	—	21,900,000 GBP	—	—	—
Interest received, classified as operating activities	—	—	—	300,000 GBP	—	—	—	—	200,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	– GBP	—	—	– GBP	—	—	—
Cash flows from (used in) operating activities	—	—	—	111,400,000 GBP	—	—	—	—	58,500,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	52,900,000 GBP	—	—	128,900,000 GBP	—	—	—
Cash flows from (used in) investing activities [abstract]
Other cash payments to acquire interests in joint ventures, classified as investing activities	—	—	—	300,000 GBP	—	—	—	—	– GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	– GBP	—	—	64,100,000 GBP	—	—	—
Proceeds from sales of property, plant and equipment, classified as investing activities	—	—	—	– GBP	—	—	—	—	– GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	100,000 GBP	—	—	200,000 GBP	—	—	—
Purchase of property, plant and equipment, classified as investing activities	—	—	—	2,000,000 GBP	—	—	—	—	600,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1,200,000 GBP	—	—	1,600,000 GBP	—	—	—
Proceeds from sales of other long-term assets, classified as investing activities	—	—	—	– GBP	—	—	—	—	– GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	82,000,000 GBP	—	—	– GBP	—	—	—
Cash flows from (used in) investing activities	—	—	—	51,700,000 GBP	—	—	—	—	600,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	80,900,000 GBP	—	—	186,600,000 GBP	—	—	—
Cash flows from (used in) financing activities [abstract]
Proceeds from issuing shares	—	—	—	1,200,000 GBP	—	—	—	—	1,200,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1,800,000 GBP	—	—	1,800,000 GBP	—	—	—
Proceeds from borrowings, classified as financing activities	—	—	—	7,400,000 GBP	—	—	—	—	– GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	– GBP	—	—	12,300,000 GBP	—	—	—
Repayments of borrowings, classified as financing activities	—	—	—	– GBP	—	—	—	—	– GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	– GBP	—	—	28,000,000 GBP	—	—	—
Dividends paid, classified as financing activities	—	—	—	86,800,000 GBP	—	—	—	—	86,800,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	84,300,000 GBP	—	—	84,300,000 GBP	—	—	—
Cash flows from (used in) financing activities	—	—	—	88,600,000 GBP	—	—	—	—	35,800,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	10,100,000 GBP	—	—	74,700,000 GBP	—	—	—
Increase (decrease) in cash and cash equivalents after effect of exchange rate changes	—	—	—	28,900,000 GBP	—	—	—	—	23,300,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	17,900,000 GBP	—	—	17,000,000 GBP	—	—	—
Cash and cash equivalents	76,600,000 GBP	—	—	—	—	—	—	—	—	—	—	67,300,000 GBP	—	—	—	—	—	—	—	—	105,500,000 GBP	—	—	90,600,000 GBP	—	—	—	—	—	—	—	—	72,700,000 GBP	88,500,000 GBP