Fair Value Measurements - Assets and Liabilities Recorded at Fair Value (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Assets:
Deferred compensation assets	$ 14.4	$ 12.8
Foreign currency contracts		3.0
Commodity call options	1.8	0.3
Total assets at fair value	30.4	16.1
Liabilities:
Contingent consideration	3.5	3.6
Deferred compensation liabilities	15.7	14.5
Total liabilities at fair value	22.0	33.4
Foreign currency contracts
Assets:
Foreign currency contracts	12.0
Liabilities:
Foreign currency contracts	2.8	9.7
Cross-currency swap
Assets:
Foreign currency contracts	2.2
Liabilities:
Foreign currency contracts		5.6
Level 1
Assets:
Deferred compensation assets	14.4	12.8
Foreign currency contracts		0.0
Commodity call options	0.0
Total assets at fair value	14.4	12.8
Liabilities:
Contingent consideration	0.0	0.0
Deferred compensation liabilities	15.7	14.5
Total liabilities at fair value	15.7	14.5
Level 1 | Foreign currency contracts
Assets:
Foreign currency contracts	0.0
Liabilities:
Foreign currency contracts	0.0	0.0
Level 1 | Cross-currency swap
Assets:
Foreign currency contracts	0.0
Liabilities:
Foreign currency contracts		0.0
Level 2
Assets:
Deferred compensation assets	0.0	0.0
Foreign currency contracts		3.0
Commodity call options	1.8	0.3
Total assets at fair value	16.0	3.3
Liabilities:
Contingent consideration	0.0	0.0
Deferred compensation liabilities	0.0	0.0
Total liabilities at fair value	2.8	15.3
Level 2 | Foreign currency contracts
Assets:
Foreign currency contracts	12.0
Liabilities:
Foreign currency contracts	2.8	9.7
Level 2 | Cross-currency swap
Assets:
Foreign currency contracts	2.2
Liabilities:
Foreign currency contracts		5.6
Level 3
Assets:
Deferred compensation assets	0.0	0.0
Foreign currency contracts		0.0
Commodity call options	0.0
Total assets at fair value	0.0	0.0
Liabilities:
Contingent consideration	3.5	3.6
Deferred compensation liabilities	0.0	0.0
Total liabilities at fair value	3.5	3.6
Level 3 | Foreign currency contracts
Assets:
Foreign currency contracts	0.0
Liabilities:
Foreign currency contracts	0.0	0.0
Level 3 | Cross-currency swap
Assets:
Foreign currency contracts	$ 0.0
Liabilities:
Foreign currency contracts		$ 0.0