Profit Or Loss [Abstract]

OSB Group PLC - Filing #1871266

Concept	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	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	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
Profit or loss [abstract]
Profit (loss) [abstract]
Revenue	—	—	7 7 5 .4 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	6 2 9. 0 GBP	—
Other income	—	—	6,600,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	7. 9 GBP	—
Impairment loss (impairment gain and reversal of impairment loss) determined in accordance with IFRS 9	—	—	2 9. 8 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	4 .4 GBP	—
Profit (loss) before tax	—	—	531,500,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	4 6 4.6 GBP	—
Tax expense (income)	—	—	121,500,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1 1 9. 3 GBP	—
Profit (loss)	– GBP	– GBP	410 .0 GBP	410. 0 GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	345. 3 GBP	345. 3 GBP
Earnings per share [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Earnings per share [abstract]
Earnings per share [line items]
Basic earnings per share [abstract]
Basic earnings (loss) per share	—	—	90. 8	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	76 . 0	—
Diluted earnings per share [abstract]
Diluted earnings (loss) per share	—	—	8 9. 8	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	0.752	—