XML 15 R45.htm IDEA: XBRL DOCUMENT v3.20.1
Fair Value Measurements - Additional Information (Details) - USD ($)
$ in Millions
Mar. 31, 2020
Dec. 31, 2019
Senior Notes    
Fair Values Of Financial Instruments [Line Items]    
Fair value of senior notes $ 389.5 $ 423.5
FX Forward Contracts    
Fair Values Of Financial Instruments [Line Items]    
Fair value of foreign currency forward contracts $ 0.3 $ (0.8)
Senior Notes    
Fair Values Of Financial Instruments [Line Items]    
Stated interest rate on senior notes 5.375%