Goodwill and intangible assets (Tables)

6 Months Ended

Jun. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill

The components of goodwill and other intangible assets are as follows:

Goodwill:

	Global Ceramic segment			Flooring NA segment		Flooring ROW segment		Total
Balance as of December 31, 2017
Goodwill	$	1,567,872		869,764		1,361,248		3,798,884
Accumulated impairment losses	(531,930		)	(343,054	)	(452,441	)	(1,327,425	)
	$	1,035,942		526,710		908,807		2,471,459
Goodwill recognized during the period	$	—		—		12,548		12,548
Currency translation during the period	$	(11,342	)	—		(25,619	)	(36,961	)
Balance as of June 30, 2018
Goodwill	$	1,556,530		869,764		1,348,177		3,774,471
Accumulated impairment losses	(531,930		)	(343,054	)	(452,441	)	(1,327,425	)
	$	1,024,600		526,710		895,736		2,447,046

Schedule of indefinite life assets not subject to amortization

Intangible assets not subject to amortization:

	Tradenames
Balance as of December 31, 2017	$	644,208
Intangible assets acquired during the period	—
Currency translation during the period	(13,843		)
Balance as of June 30, 2018	$	630,365

Schedule of intangible assets subject to amortization

Intangible assets subject to amortization:

Gross carrying amounts:	Customer relationships			Patents		Other		Total
Balance as of December 31, 2017	$	625,263		266,969		6,825		899,057
Intangible assets recognized during the period	—			—		7		7
Currency translation during the period	(11,108		)	(7,185	)	(123	)	(18,416	)
Balance as of June 30, 2018	$	614,155		259,784		6,709		880,648
Accumulated amortization:	Customer relationships			Patents		Other		Total
Balance as of December 31, 2017	$	390,428		259,908		1,162		651,498
Amortization during the period	13,875			1,155		20		15,050
Currency translation during the period	(7,051		)	(7,006	)	(10	)	(14,067	)
Balance as of June 30, 2018	$	397,252		254,057		1,172		652,481
Intangible assets subject to amortization, net	$	216,903		5,727		5,537		228,167

Schedule of intangible assets amortization expense

	Three Months Ended			Six Months Ended
	June 30, 2018		July 1, 2017	June 30, 2018	July 1, 2017
Amortization expense	$	7,483	9,322	15,050	19,381