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Acquisitions - Unaudited Pro Forma Financial Information (Detail) (Vogel & Noot Holding AG, USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Vogel & Noot Holding AG
Business Acquisition [Line Items]
Net sales	$ 3,554,747	$ 3,381,471
Net income	$ 198,824	$ 161,023
Earnings per share:
Basic net income per share	$ 2.84	$ 2.12
Diluted net income per share	$ 2.83	$ 2.10

- Definition

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References+ Details

- Definition

The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References+ Details