Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Net sales	$ 3,939,786	$ 3,554,101	$ 2,820,065
Cost of sales	2,696,126	2,395,873	1,933,511
Gross profit	1,243,660	1,158,228	886,554
Casualty loss related to flood	21,479
Change in contingent acquisition-related obligations	(17,813)
Acquisition-related expenses	2,000
Selling, general and administrative expenses	486,316	457,871	397,641
Operating income	751,678	700,357	488,913
Interest expense	(43,029)	(40,741)	(36,586)
Early extinguishment of interest rate swaps			(4,575)
Other income (expense), net	8,103	4,072	(1,225)
Income before income taxes	716,752	663,688	446,527
Provision for income taxes	(187,910)	(161,275)	(119,311)
Net income	528,842	502,413	327,216
Less: Net income attributable to noncontrolling interests	(4,651)	(6,008)	(9,382)
Net income attributable to Amphenol Corporation	$ 524,191	$ 496,405	$ 317,834
Net income per common share - Basic (in dollars per share)	$ 3.09	$ 2.86	$ 1.85
Weighted average common shares outstanding - Basic (in shares)	169,640,115	173,785,650	171,607,643
Net income per common share - Diluted (in dollars per share)	$ 3.05	$ 2.82	$ 1.83
Weighted average common shares outstanding - Diluted (in shares)	171,825,588	176,325,993	173,941,752
Dividends declared per common share (in dollars per share)	$ 0.06	$ 0.06	$ 0.06