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Redeemable Noncontrolling Interests
 6 Months Ended
Jun. 30, 2021
Redeemable Noncontrolling Interest [Abstract]  
Noncontrolling Interest Disclosure [Text Block] Redeemable Noncontrolling Interests
Changes in redeemable noncontrolling interests were as follows:
20212020
Beginning balance as of January 1$19.2 $20.9 
Redemption value adjustment— (0.8)
Termination of put option(19.2)— 
Ending balance as of June 30$— $20.1 

During the first quarter of 2021, the Company entered into an agreement whereby its ownership percentage in a certain consolidated but non-wholly owned subsidiary in Europe was reduced by means of capital contributions from noncontrolling shareholders totaling $12.7. Following the agreement, the Company maintains a controlling interest in the subsidiary. As part of this agreement, the put option that could have required the Company to acquire the noncontrolling shares was irrevocably waived, reducing the redeemable noncontrolling interest to zero.