Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Earnings Per Share
Net income attributable to Amphenol Corporation shareholders (in dollars)	$ 153,007	$ 126,563
Basic weighted average common shares outstanding	159,738,168	162,861,863
Effect of dilutive stock options (in shares)	2,974,834	2,493,275
Dilutive weighted average common shares outstanding	162,713,002	165,355,138
Earnings per share attributable to Amphenol Corporation shareholders:
Basic (in dollars per share)	$ 0.96	$ 0.78
Diluted (in dollars per share)	$ 0.94	$ 0.77
Anti-dilutive stock options, excluded from the computations of earning per share	1,263,518	4,185,293

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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