Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Millions	Total	Total Envista Equity	Common Stock	Additional Paid-in Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Balance, beginning of period at Dec. 31, 2019		$ 3,540.2	$ 1.6	$ 3,589.7	$ 93.1	$ (144.2)	$ 2.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock-based award activity		6.4		6.4
Net income (loss)		(17.2)			(17.2)
Other comprehensive income (loss)		(45.7)				(45.7)
Balance, end of period at Apr. 03, 2020		3,483.7	1.6	3,596.1	75.9	(189.9)	2.6
Balance, beginning of period at Dec. 31, 2019		3,540.2	1.6	3,589.7	93.1	(144.2)	2.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ (75.1)
Other comprehensive income (loss)	8.0
Balance, end of period at Oct. 02, 2020		3,557.6	1.6	3,674.2	18.0	(136.2)	2.2
Balance, beginning of period at Apr. 03, 2020		3,483.7	1.6	3,596.1	75.9	(189.9)	2.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock-based award activity		7.6		7.6
Equity component of convertible senior notes, net of financing costs and taxes		77.9		77.9
Purchase of capped calls related to issuance of convertible senior notes, net of taxes		(15.7)		(15.7)
Net income (loss)		(93.5)			(93.5)
Other comprehensive income (loss)		33.4				33.4
Changes in noncontrolling interests							(0.1)
Balance, end of period at Jul. 03, 2020		3,493.4	1.6	3,665.9	(17.6)	(156.5)	2.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock-based award activity		8.3		8.3
Net income (loss)	35.6	35.6			35.6
Other comprehensive income (loss)	20.3	20.3				20.3
Changes in noncontrolling interests							(0.3)
Balance, end of period at Oct. 02, 2020		3,557.6	1.6	3,674.2	18.0	(136.2)	2.2
Balance, beginning of period at Dec. 31, 2020	3,721.0	3,720.6	1.6	3,684.4	126.4	(91.8)	0.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock-based award activity		6.7		6.7
Net income (loss)		71.7			71.7
Other comprehensive income (loss)		(52.1)				(52.1)
Balance, end of period at Apr. 02, 2021		3,746.9	1.6	3,691.1	198.1	(143.9)	0.4
Balance, beginning of period at Dec. 31, 2020	3,721.0	3,720.6	1.6	3,684.4	126.4	(91.8)	0.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	254.7
Other comprehensive income (loss)	(60.8)
Balance, end of period at Oct. 01, 2021	3,947.1	3,946.7	1.6	3,716.6	381.1	(152.6)	0.4
Balance, beginning of period at Apr. 02, 2021		3,746.9	1.6	3,691.1	198.1	(143.9)	0.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock-based award activity		16.5		16.5
Net income (loss)		90.1			90.1
Other comprehensive income (loss)		15.0				15.0
Balance, end of period at Jul. 02, 2021		3,868.5	1.6	3,707.6	288.2	(128.9)	0.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock-based award activity		9.0		9.0
Net income (loss)	92.9	92.9			92.9
Other comprehensive income (loss)	(23.7)	(23.7)				(23.7)
Balance, end of period at Oct. 01, 2021	$ 3,947.1	$ 3,946.7	$ 1.6	$ 3,716.6	$ 381.1	$ (152.6)	$ 0.4