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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

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- Definition

Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date.

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- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Acquisitions - Narrative (Details) $ in Thousands, $ in Thousands		3 Months Ended
	Apr. 04, 2017 USD ($)	Jun. 30, 2018 AUD ($)	Mar. 31, 2018 USD ($) business	Jul. 01, 2017 USD ($) business	Apr. 01, 2017 USD ($)	Dec. 31, 2017 USD ($)
Business Acquisition [Line Items]
Goodwill recognized during the period			$ 12,548
Goodwill			2,512,615			$ 2,471,459
Godfrey Hirst Group
Business Acquisition [Line Items]
Purchase agreement price			427,134
Emilceramica S.r.l
Business Acquisition [Line Items]
Purchase agreement price	$ 186,099
Intangible assets subject to amortization	2,348
Goodwill	59,491
Tradenames \| Emilceramica S.r.l
Business Acquisition [Line Items]
Indefinite-lived tradename intangible asset	$ 16,196
Global Ceramic segment
Business Acquisition [Line Items]
Goodwill recognized during the period			0
Goodwill			1,041,042			1,035,942
Global Ceramic segment \| Global Ceramic Acquisitions
Business Acquisition [Line Items]
Purchase agreement price				$ 37,250
Number of acquisitions \| business				2
Goodwill				$ 1,002
Flooring NA segment
Business Acquisition [Line Items]
Goodwill recognized during the period			0
Goodwill			526,710			526,710
Flooring NA segment \| Flooring NA Acquisition
Business Acquisition [Line Items]
Purchase agreement price				$ 26,623
Flooring ROW segment
Business Acquisition [Line Items]
Purchase agreement price			$ 24,410
Number of acquisitions \| business			3
Goodwill recognized during the period			$ 12,548
Intangible assets subject to amortization			7
Goodwill			$ 944,863			$ 908,807
Flooring ROW segment \| Flooring ROW Acquisition
Business Acquisition [Line Items]
Purchase agreement price					$ 1,407
Intangible assets subject to amortization					$ 827
Forecast \| Godfrey Hirst Group
Business Acquisition [Line Items]
Purchase agreement price		$ 556,000