Consolidated Statements Of Stockholders' Equity (USD $) In Thousands	Total	Redeemable Noncontrolling Interest [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Deficit) [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]
Beginning balance at Dec. 31, 2011	$ 3,415,785	$ 33,723	$ 798	$ 1,248,131	$ 2,354,765	$ 135,639	$ (323,548)	$ 0
Beginning balance, shares at Dec. 31, 2011			79,815				(11,034)
Shares issued under employee and director stock plans	13,557		4	13,467			86
Shares issued under employee and director stock plans, shares			370				2
Stock-based compensation expense	14,082			14,082
Tax benefit from stock-based compensation	1,133			1,133
Distribution to noncontrolling interest, net of adjustments		(423)
Noncontrolling earnings	635	635
Purchase of noncontrolling interest		(35,000)
Tax effect of purchase of noncontrolling interest	708	1,065		708
Foreign currency translation adjustments	25,685					25,685
Pension prior service cost and actuarial (loss) gain	(1,591)					(1,591)
Net income	250,258				250,258
Ending balance at Dec. 31, 2012	3,719,617	0	802	1,277,521	2,605,023	159,733	(323,462)	0
Ending balance, shares at Dec. 31, 2012			80,185				(11,032)
Marazzi acquisition	313,906			229,631			84,275
Marazzi acquisition, shares							2,874
Shares issued under employee and director stock plans	37,542		6	37,583			(47)
Shares issued under employee and director stock plans, shares			656				3
Stock-based compensation expense	18,311			18,311
Tax benefit from stock-based compensation	3,939			3,939
Noncontrolling earnings	505							505
Acquisition of noncontrolling interest	8,744							8,744
Foreign currency translation adjustments	18,185					18,185
Pension prior service cost and actuarial (loss) gain	771					771
Net income	348,786				348,786
Ending balance at Dec. 31, 2013	4,470,306	0	808	1,566,985	2,953,809	178,689	(239,234)	9,249
Ending balance, shares at Dec. 31, 2013			80,841				(8,155)
Shares issued under employee and director stock plans, shares							0
Shares issued under employee and director stock plans, including executive share swap	(1,326)		3	(1,113)			(216)
Shares issued under employee and director stock plans, including executive share swap, shares			229				(2)
Stock-based compensation expense	27,961			27,961
Tax benefit from stock-based compensation	5,054			5,054
Distribution to noncontrolling interest, net of adjustments	(1,087)							(1,087)
Noncontrolling earnings	289							289
Purchase of noncontrolling interest	0				1,305			(1,305)
Foreign currency translation adjustment on non-controlling interests	(2,339)							(2,339)
Foreign currency translation adjustments	(607,351)					(607,351)
Pension prior service cost and actuarial (loss) gain	(659)					(659)
Net income	531,965				531,965
Ending balance at Dec. 31, 2014	$ 4,422,813	$ 0	$ 811	$ 1,598,887	$ 3,487,079	$ (429,321)	$ (239,450)	$ 4,807
Ending balance, shares at Dec. 31, 2014			81,070				(8,157)