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Stockholders' Equity (Details)
 3 Months Ended
Mar. 31, 2017
USD ($)
vote
$ / shares
shares
Mar. 31, 2016
USD ($)
shares
Feb. 08, 2017
right
$ / shares
shares
Feb. 01, 2017
USD ($)
Capital stock [Abstract]        
Common stock shares authorized (in shares) | shares 300,000,000.0      
Common stock par value (USD per share) | $ / shares $ 0.01   $ 0.01  
Preferred stock authorized shares (in shares) | shares 10,000.00      
Preferred stock par or stated value (in dollars per share) | $ / shares $ 0.01      
Common stock, number of votes granted per common share held | vote 1      
Number of rights authorized per share of outstanding common stock | right     1  
Percentage ownership of common stock outstanding required to exercise rights     20.00%  
Other comprehensive income:        
Foreign currency translation adjustments $ 8,800,000 $ 19,100,000    
Total other comprehensive income, net of tax 8,300,000 14,200,000    
Income tax provision 14,600,000 17,300,000    
Foreign Currency Translation        
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]        
Balance at beginning of period (119,900,000) (115,400,000)    
Other comprehensive income:        
Foreign currency translation adjustments 8,800,000 19,100,000    
Balance at end of period (111,100,000) (96,300,000)    
Income tax provision 0 0    
Pensions        
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]        
Balance at beginning of period (2,200,000) (1,400,000)    
Other comprehensive income:        
Net change from period revaluations 0 0    
Balance at end of period (2,200,000) (1,400,000)    
Foreign Exchange Forward Contracts        
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]        
Balance at beginning of period 600,000 6,600,000    
Other comprehensive income:        
Net change from period revaluations (300,000) (5,000,000)    
Tax (expense) benefit 100,000 1,300,000    
Total other comprehensive income before reclassifications, net of tax (200,000) (3,700,000)    
Net amount reclassified to earnings (400,000) (1,600,000)    
Tax benefit 100,000 400,000    
Total amount reclassified from AOCL, net of tax (300,000) (1,200,000)    
Total other comprehensive income, net of tax (500,000) (4,900,000)    
Balance at end of period 100,000 1,700,000    
Performance-based Restricted Stock Units        
Capital stock [Abstract]        
Value of treasury stock acquired (in shares) $ 3,700,000 $ 2,000,000    
Repurchase of shares upon vesting of PRSUs withheld to satisfy tax withholding obligations (in shares) | shares 100,000 100,000    
February 2016 Program        
Capital stock [Abstract]        
Maximum authorized amount under stock repurchase program       $ 200,000,000.0
Treasury stock acquired (in shares) | shares 600,000      
Value of treasury stock acquired (in shares) $ 40,100,000      
Remaining shares under share repurchase authorization (in shares) | shares 226,900,000      
Series A Preferred Stock        
Capital stock [Abstract]        
Preferred stock par or stated value (in dollars per share) | $ / shares     $ 0.01  
Number of shares called by each right | shares     0.001  
Exercise price of right (in dollars per share) | $ / shares     $ 90