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Income Taxes - Additional Information (Detail) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Tax Contingency [Line Items]      
Decrease in effective tax rate due to valuation allowance, percentage 32.60% 2.40% 2.00%
Decrease in effective tax rate due to valuation allowance, amount $ 82,500,000    
Increase in effective tax rate 3.90% 2.50%  
Nondeductible goodwill   14.40% 351.20%
Effective income tax rate include non-deductible goodwill and asset impairment charge   73,600,000 121,700,000
Effective tax rate includes favorable tax adjustment     46.10%
Unrecognized tax benefits that would impact effective tax rate 12,700,000 18,800,000  
Short-term reserves 700,000    
Long-term reserves 13,200,000    
Interest and penalties 3,107,000 3,794,000 4,532,000
Unrecognized tax benefits, income tax penalties and interest benefit/expense recognized 700,000 500,000 600,000
Gross unrecognized tax benefits change range, minimum 0    
Gross unrecognized tax benefits change range, maximum 1,100,000    
Net operating loss carry forwards, for state income tax purposes 187,700,000    
Deferred income tax expense from discontinued operations 18,000,000    
Q4 2013 Assessment Continuing & Discontinued [Member]
      
Income Tax Contingency [Line Items]      
Decrease in effective tax rate due to valuation allowance, amount 72,200,000    
Valuation Allowance Foreign Tax Credits [Member]
      
Income Tax Contingency [Line Items]      
Decrease in effective tax rate due to valuation allowance, amount 3,100,000    
Valuation Allowance Net Operating Loss Carryforwards [Member]
      
Income Tax Contingency [Line Items]      
Decrease in effective tax rate due to valuation allowance, amount $ 7,200,000