Fair Value Measurements - Financial Instruments at Fair Value (Details) - Measured at fair value on a recurring basis - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Level 1
Assets:
Investment securities	$ 0.0	$ 0.1
Total assets	0.0	0.1
Liabilities:
Total liabilities	0.0	0.0
Level 1 | Foreign currency forward contracts
Assets:
Derivative assets	0.0	0.0
Liabilities:
Derivative liabilities	0.0	0.0
Level 1 | Interest rate swap agreements
Assets:
Derivative assets	0.0	0.0
Level 1 | Cross-currency swap
Liabilities:
Derivative liabilities	0.0	0.0
Level 2
Assets:
Investment securities	0.0	0.0
Total assets	5.2	7.2
Liabilities:
Total liabilities	97.6	101.3
Level 2 | Foreign currency forward contracts
Assets:
Derivative assets	5.2	4.2
Liabilities:
Derivative liabilities	1.4	5.2
Level 2 | Interest rate swap agreements
Assets:
Derivative assets	0.0	3.0
Level 2 | Cross-currency swap
Liabilities:
Derivative liabilities	96.2	96.1
Level 3
Assets:
Investment securities	0.0	0.0
Total assets	0.0	0.0
Liabilities:
Total liabilities	0.0	0.0
Level 3 | Foreign currency forward contracts
Assets:
Derivative assets	0.0	0.0
Liabilities:
Derivative liabilities	0.0	0.0
Level 3 | Interest rate swap agreements
Assets:
Derivative assets	0.0	0.0
Level 3 | Cross-currency swap
Liabilities:
Derivative liabilities	$ 0.0	$ 0.0