Quarterly Results of Operations (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
Dec. 31, 2020	Sep. 26, 2020	Jun. 27, 2020	Mar. 28, 2020	Dec. 31, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Net revenues	$ 101,937	$ 94,436	$ 113,338	$ 97,074	$ 98,479	$ 91,961	$ 67,251	$ 40,206	$ 406,785	$ 297,897	$ 87,934
Cost of goods sold	76,532	68,908	79,687	59,383	65,018	59,178	44,510	29,435	284,510	198,141	70,360
Gross profit	$ 25,405	$ 25,528	$ 33,651	$ 37,691	$ 33,461	$ 32,783	$ 22,741	$ 10,771	122,275	99,756	17,574
Gross margin	24.90%	27.00%	29.70%	38.80%	34.00%	35.60%	33.80%	26.80%
Research and development expenses	$ 11,047	$ 8,278	$ 6,016	$ 6,194	$ 5,989	$ 5,951	$ 4,212	$ 4,498	31,535	20,650	9,587
Selling, general and administrative expenses	38,488	33,560	34,292	27,315	27,090	20,944	15,515	11,177	133,655	74,726	34,461
Restructuring expenses	402	2,146	1,509	2,373	1,309	2,319	847	394	6,430	4,869	1,515
Total operating expenses	49,937	43,984	41,817	35,882	34,388	29,214	20,574	16,069	171,620	100,245	45,563
Loss from operations	(24,532)	(18,456)	(8,166)	1,809	(927)	3,569	2,167	(5,298)	(49,345)	(489)	(27,989)
Other (expense) income:
Interest expense	(613)	(689)	(569)	(705)	(742)	(855)	(741)	(733)	(2,576)	(3,071)	(1,128)
Remeasurement of warrant liability	0	0	0	0	0	0	(11,744)	(759)	0	(12,503)	(1,120)
Other, net	70	(85)	(1,454)	710	1,205	1,385	898	141	(759)	3,629	352
Total other expense, net	(543)	(774)	(2,023)	5	463	530	(11,587)	(1,351)	(3,335)	(11,945)	(1,896)
Loss before taxes	(25,075)	(19,230)	(10,189)	1,814	(464)	4,099	(9,420)	(6,649)	(52,680)	(12,434)	(29,885)
Income tax expense (benefit)	2	55	16	(1)	(12)	0	21	0	72	9	1
Net loss	$ (25,077)	$ (19,285)	$ (10,205)	$ 1,815	$ (452)	$ 4,099	$ (9,441)	$ (6,649)	$ (52,752)	$ (12,443)	$ (29,886)
Net (loss) income per share available to common stockholders:
Basic (in dollars per share)	$ (0.40)	$ (0.31)	$ (0.16)	$ 0.03	$ (0.01)	$ 0.07	$ (0.24)	$ (0.95)
Diluted (in dollars per share)	$ (0.40)	$ (0.31)	$ (0.16)	$ 0.03	$ (0.01)	$ 0.06	$ (0.24)	$ (0.95)

Gross Margin

No definition available.

Name:	bynd_GrossMargin
Namespace Prefix:	bynd_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 924
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2(a),(d))
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227