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 (Loss) [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]
Beginning balance at Dec. 31, 2012	$ 3,719,617	$ 0	$ 802	$ 1,277,521	$ 2,605,023	$ 159,733	$ (323,462)	$ 0
Beginning balance (in shares) at Dec. 31, 2012			80,185,000				(11,032,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Marazzi and IVC Group acquisitions	313,906			229,631			$ 84,275
Marazzi and IVC Group acquisitions (in shares)							2,874,000
Shares issued under employee and director stock plans	37,542		$ 6	37,583			$ (47)
Shares issued under employee and director stock plans (in shares)			656,000
Stock-based compensation expense	18,311			18,311
Tax benefit from stock-based compensation	3,939			3,939
Noncontrolling earnings	505							505
Currency translation adjustments	18,185					18,185
Acquisition of noncontrolling interest	8,744							8,744
Pension prior service cost and actuarial gain (loss)	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 (in shares) at Dec. 31, 2013			80,841,000				(8,155,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued under employee and director stock plans	(1,326)		$ 3	(1,113)			$ (216)
Shares issued under employee and director stock plans (in shares)			229,000				(2,000)
Stock-based compensation expense	27,961			27,961
Tax benefit from stock-based compensation	5,054			5,054
Distribution of noncontrolling interest	(1,087)							(1,087)
Noncontrolling earnings	289							289
Currency translation adjustment on non-controlling interests	(2,339)							(2,339)
Currency translation adjustments	(607,351)					(607,351)
Acquisition of noncontrolling interest	0				1,305			(1,305)
Pension prior service cost and actuarial gain (loss)	(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 (in shares) at Dec. 31, 2014			81,070,000				(8,157,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Marazzi and IVC Group acquisitions	153,096			129,445			$ 23,651
Marazzi and IVC Group acquisitions (in shares)							806,000
Shares issued under employee and director stock plans	$ (6,530)		$ 2	(6,536)			$ 4
Options granted (in shares)	0
Shares issued under employee and director stock plans (in shares)			210,000				0
Stock-based compensation expense	$ 32,552			32,552
Tax benefit from stock-based compensation	5,668			5,668
Increase in Carrying Amount of Redeemable Preferred Stock	(194)	194			(194)
Net Income (Loss) Attributable to Noncontrolling Interest and Redeemable Noncontrolling Interest	256	1,428						256
Noncontrolling earnings	1,684
Currency translation adjustment on non-controlling interests	(970)	(713)						(970)
Currency translation adjustments	(360,147)					(360,147)
Acquisition of noncontrolling interest	3,117	21,043			520			2,597
Pension prior service cost and actuarial gain (loss)	(4,100)					(4,100)
Net income	615,302				615,302
Ending balance at Dec. 31, 2015	$ 4,860,863	$ 21,952	$ 813	$ 1,760,016	$ 4,102,707	$ (793,568)	$ (215,795)	$ 6,690
Ending balance (in shares) at Dec. 31, 2015			81,280,000				(7,351,000)