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Equity Compensation Plans (Details)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Mar. 19, 2015
shares
Mar. 17, 2015
$ / shares
shares
Mar. 06, 2014
USD ($)
shares
Apr. 23, 2013
shares
Jun. 30, 2015
USD ($)
$ / shares
shares
Jun. 30, 2014
USD ($)
Jun. 30, 2015
USD ($)
person
$ / shares
shares
Jun. 30, 2014
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Combined undiscounted maximum cash value of all RSUs | $     $ 7.1   $ 5.0   $ 5.0  
The 2013 Plan [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Total number of shares of common stock that may be subject to grant awards (in shares)         15,500,000   15,500,000  
Employee Stock Purchase Plan [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Maximum approved shares of common stock for ESPP (in shares)     5,178,815          
Total number of shares issued under ESPP (in shares)             25,966  
Persons eligible to participate | person             573  
Restricted Stock Units (RSUs) [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Canceled (in shares)             (25,984)  
Restricted Stock Units (RSUs) [Member] | The 2013 Plan [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Shares of common stock issued (in shares)     213,402          
Grant date fair value range (in usd per share) | $ / shares   $ 23.43            
Restricted Stock Units (RSUs) [Member] | Director [Member] | The 2013 Plan [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Shares of common stock issued (in shares)             84,242  
Restricted Stock Units (RSUs) [Member] | Certain Employees [Member] | The 2013 Plan [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Shares of common stock issued (in shares)             242,980  
Performance Restricted Stock Units (RSUs) [Member] | Certain Employees [Member] | The 2013 Plan [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Shares of common stock issued (in shares)             242,980  
Restricted Stock Units Granted 17 March 2015 [Member] | The 2013 Plan [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Shares of common stock issued (in shares)   7,642            
Grant date fair value range (in usd per share) | $ / shares   $ 27.05            
Equity compensation expense | $         $ 0.0 $ (0.3) $ (0.3) $ (0.3)
Restricted Stock Units Granted 6 March 2014 [Member] | The 2013 Plan [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Shares of common stock issued (in shares)     329,823          
Equity compensation expense | $         $ (0.9) $ (0.1) $ (1.4) $ (0.1)
Minimum [Member] | Restricted Stock Units (RSUs) [Member] | Certain Employees [Member] | The 2013 Plan [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Grant date fair value range (in usd per share) | $ / shares         $ 26.17   $ 26.17  
Vesting period             24 months  
Maximum [Member] | Restricted Stock Units (RSUs) [Member] | Certain Employees [Member] | The 2013 Plan [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Grant date fair value range (in usd per share) | $ / shares         $ 27.05   $ 27.05  
Vesting period             57 months 15 days  
Deferred Bonus [Member] | Long Term Cash Bonus Plan (LTCB) [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Equity compensation expense | $         $ (0.3)   $ (0.8)  
Allotted bonus total amount | $         46.5   46.5  
Amount of LTCB subject to common shares | $         $ 12.5   $ 12.5  
Deferred Bonus [Member] | Minimum [Member] | Long Term Cash Bonus Plan (LTCB) [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Vesting period             24 months 15 days  
Deferred Bonus [Member] | Maximum [Member] | Long Term Cash Bonus Plan (LTCB) [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Vesting period             60 months  
Platform Specialty Products [Member] | Director [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Total number of shares issued under ESPP (in shares) 75,000              
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period       5 years        
Option to acquire shares (in shares)       75,000