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Goodwill and intangible assets (Tables)
 6 Months Ended
Jun. 27, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of goodwill
The components of goodwill and other intangible assets are as follows:

Goodwill:
Global Ceramic segmentFlooring NA segmentFlooring ROW segmentTotal
Balance as of December 31, 2019
Goodwill$1,583,576  874,198  1,439,678  3,897,452  
Accumulated impairment losses(531,930) (343,054) (452,441) (1,327,425) 
1,051,646  531,144  987,237  2,570,027  
Goodwill recognized during the period—  —  (9,642) (9,642) 
Currency translation during the period(16,538) —  (1,941) (18,479) 
Balance as of June 27, 2020
Goodwill1,567,038  874,198  1,428,095  3,869,331  
Accumulated impairment losses(531,930) (343,054) (452,441) (1,327,425) 
$1,035,108  531,144  975,654  2,541,906  
Schedule of indefinite life assets not subject to amortization
Intangible assets not subject to amortization:
        
Tradenames
Balance as of December 31, 2019$702,732  
Currency translation during the period(13,508) 
Balance as of June 27, 2020$689,224  
Schedule of intangible assets subject to amortization
Intangible assets subject to amortization:
Gross carrying amounts:Customer
relationships		PatentsOtherTotal
Balance as of December 31, 2019$645,206  249,100  6,631  900,937  
Intangible assets recognized during the period12,789  —  —  12,789  
Currency translation during the period(3,214) 419  (195) (2,990) 
Balance as of June 27, 2020$654,781  249,519  6,436  910,736  
Accumulated amortization:Customer
relationships		PatentsOtherTotal
Balance as of December 31, 2019$426,765  246,872  1,153  674,790  
Amortization during the period12,774  1,037  45  13,856  
Currency translation during the period46  434  (4) 476  
Balance as of June 27, 2020$439,585  248,343  1,194  689,122  
Intangible assets subject to amortization, net$215,196  1,176  5,242  221,614  
Schedule of intangible assets amortization expense
 Three Months EndedSix Months Ended
 June 27,
2020		June 29,
2019		June 27,
2020		June 29,
2019
Amortization expense$6,980  6,955  13,856  13,684