Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Schedule Of Stock-Based Compensation Expense) (Details)

v2.4.0.6
Stock-Based Compensation (Schedule Of Stock-Based Compensation Expense) (Details) (USD $)
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Pre-tax stock-based compensation expense $ 7,870,000 $ 6,730,000 $ 6,353,000
Income tax benefits (2,729,000) (2,162,000) (2,258,000)
Total stock-based compensation expense, net of tax 5,141,000 4,568,000 4,095,000
Cost Of Sales [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Pre-tax stock-based compensation expense 282,000 286,000 335,000
Selling, General And Administrative Expense [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Pre-tax stock-based compensation expense $ 7,588,000 $ 6,444,000 $ 6,018,000