Segment Reporting (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2025 USD ($)	Sep. 28, 2024 USD ($)	Sep. 27, 2025 USD ($) segment	Sep. 28, 2024 USD ($)	Dec. 31, 2024 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment			3
Segment Reporting Information [Line Items]
Net sales	$ 2,757.9	$ 2,719.0	$ 8,085.7	$ 8,199.7
Gross profit	654.9	692.6	1,952.5	2,065.9
Selling, general and administrative expenses	518.2	480.3	1,531.0	1,493.0
Operating income (loss)	136.7	212.3	421.5	572.9
Depreciation and amortization	170.3	156.2	476.3	481.9
Capital expenditures (excluding acquisitions)	76.3	115.4	245.6	293.6
Assets	13,620.5		13,620.5		$ 12,778.6
Operating Segments | Global Ceramic
Segment Reporting Information [Line Items]
Net sales	1,104.7	1,058.0	3,219.3	3,218.4
Gross profit	299.8	295.7	888.6	881.3
Selling, general and administrative expenses	228.2	212.3	687.1	666.0
Operating income (loss)	71.6	83.4	201.5	215.3
Depreciation and amortization	67.4	53.1	172.9	166.1
Capital expenditures (excluding acquisitions)	22.3	46.4	88.7	105.1
Assets	5,136.6		5,136.6		4,591.0
Operating Segments | Flooring NA
Segment Reporting Information [Line Items]
Net sales	936.8	974.0	2,746.0	2,832.7
Gross profit	207.0	233.9	595.3	684.4
Selling, general and administrative expenses	152.6	160.9	479.0	488.1
Operating income (loss)	54.4	73.0	116.3	196.3
Depreciation and amortization	56.4	56.3	169.3	167.9
Capital expenditures (excluding acquisitions)	27.2	43.1	81.5	104.6
Assets	4,002.5		4,002.5		3,925.5
Operating Segments | Flooring ROW
Segment Reporting Information [Line Items]
Net sales	716.4	687.0	2,120.4	2,148.6
Gross profit	148.0	163.2	468.1	499.8
Selling, general and administrative expenses	104.2	95.4	299.8	295.5
Operating income (loss)	43.8	67.8	168.3	204.3
Depreciation and amortization	44.8	44.7	128.9	141.3
Capital expenditures (excluding acquisitions)	26.8	25.7	75.4	78.2
Assets	4,059.8		4,059.8		3,594.7
Corporate and intersegment eliminations
Segment Reporting Information [Line Items]
Gross profit	0.1	(0.2)	0.5	0.4
Selling, general and administrative expenses	33.2	11.7	65.1	43.4
Operating income (loss)	(33.1)	(11.9)	(64.6)	(43.0)
Depreciation and amortization	1.7	2.1	5.2	6.6
Capital expenditures (excluding acquisitions)	0.0	$ 0.2	0.0	$ 5.7
Assets	$ 421.6		$ 421.6		$ 667.4