Statement Of Changes In Equity [Abstract]

BE Semiconductor Industries N.V. - Filing #1833413

Concept	2020-01-01 to 2020-12-31	As at 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	2019-01-01 to 2019-12-31	As at 2019-12-31	2019-01-01 to 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	2019-01-01 to 2019-12-31	As at 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	As at 2019-01-01	As at 2019-01-01	As at 2019-01-01	As at 2019-01-01	As at 2019-01-01
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	127,425,000 EUR	786,000 EUR	—	64,416,000 EUR	178,600,000 EUR	—	—	371,227,000 EUR	—	801,000 EUR	298,508,000 EUR	77,417,000 EUR	60,619,000 EUR	159,671,000 EUR	—	60,619,000 EUR	—	159,671,000 EUR	298,508,000 EUR	77,417,000 EUR	—	801,000 EUR	—	—	48,249,000 EUR	801,000 EUR	197,279,000 EUR	372,188,000 EUR	125,859,000 EUR
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	132,275,000 EUR	—	—	132,275,000 EUR	—	—	- EUR	- EUR	—	- EUR	—	—	—	—	—	- EUR	—	81,320,000 EUR	—	—	—	81,320,000 EUR	—	- EUR	- EUR	—	—	—	—	—
Other comprehensive income	4,984,000 EUR	—	—	- EUR	—	—	4,984,000 EUR	- EUR	—	- EUR	—	—	—	—	—	5,027,000 EUR	—	- EUR	—	—	—	5,027,000 EUR	—	- EUR	- EUR	—	—	—	—	—
Comprehensive income	127,291,000 EUR	—	—	132,275,000 EUR	—	—	4,984,000 EUR	- EUR	—	- EUR	—	—	—	—	—	5,027,000 EUR	—	81,320,000 EUR	—	—	—	86,347,000 EUR	—	- EUR	- EUR	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	10,470,000 EUR	—	—	- EUR	—	—	- EUR	- EUR	—	10,470,000 EUR	—	—	—	—	—	- EUR	—	- EUR	—	—	—	7,289,000 EUR	—	- EUR	7,289,000 EUR	—	—	—	—	—