Casualty Loss Related to Flood (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2011
Casualty loss related to flood
Charges related to flood in Sidney, New York	$ 21,479
Sidney, New York flooding
Casualty loss related to flood
Charges related to flood in Sidney, New York	21,500
Charges related to flood in Sidney, New York, net of tax	$ 13,500
Net income per common stockholders, diluted as a result from damage in manufacturing facility	$ 0.08

The amount of net income (loss) during 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 resulting from severe damage related to property, as well as cleanup and repair efforts incurred, net of insurance recoveries.

No definition available.

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Period Type:	duration