Annual report pursuant to Section 13 and 15(d)

Income Taxes - Effective Tax Rates Differ from Statutory Federal Income Tax (Detail)

v2.4.0.8
Income Taxes - Effective Tax Rates Differ from Statutory Federal Income Tax (Detail)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Tax Disclosure [Abstract]      
Statutory Federal Income Tax Rate 35.00% 35.00% 35.00%
Non-deductible Stock Compensation Expense 1.00% 1.10% 1.00%
Domestic Production Activity Deduction (3.00%) (3.00%) (2.90%)
Non-deductible Acquisition Costs 1.00%    
Other   0.10% (0.20%)
Foreign Tax Benefits (0.30%) (1.20%) (1.00%)
State Income Tax (Benefits), Net of Federal Income Tax Effect (0.10%) (0.10%) 1.40%
Research and Development Tax Credits (5.00%) (1.10%) (6.10%)
Other   (0.10%) (1.60%)
Effective Tax Rate 28.60% 30.70% 25.60%