Statement Of Comprehensive Income [Abstract]

REC Silicon - Filing #2616799

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	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)	—	—	—	—	—	30,100,000 USD	—	—	—	46,700,000 USD	—	—	—	—
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	—	—	—	—	—	4,300,000 USD	—	—	—	1,100,000 USD	—	—	—	—
Other comprehensive income that will not be reclassified to profit or loss, net of tax	—	—	—	—	—	4,400,000 USD	—	—	—	1,100,000 USD	—	—	—	—
Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]
Exchange differences on translation [abstract]
Gains (losses) on exchange differences on translation of foreign operations, net of tax	—	—	—	—	—	0 USD	—	—	—	0 USD	—	—	—	—
Other comprehensive income that will be reclassified to profit or loss, net of tax	—	—	—	—	—	0 USD	—	—	—	0 USD	—	—	—	—
Other comprehensive income	—	—	—	—	—	4,300,000 USD	—	—	—	1,100,000 USD	—	—	—	—
Comprehensive income	0 USD	0 USD	0 USD	0 USD	0 USD	25,700,000 USD	25,700,000 USD	47,700,000 USD	0 USD	47,700,000 USD	0 USD	0 USD	0 USD	0 USD
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	—	—	—	—	25,700,000 USD	—	—	—	47,700,000 USD	—	—	—	—