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Property, Plant, and Equipment - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	May 31, 2020
Depreciation [Abstract]
Depreciation expense	$ 95.5	$ 89.6	$ 279.9	$ 272.7
Incremental depreciation			3.6	$ 2.9
Purchases of property, plant, and equipment included in accounts payable			$ 112.1		$ 22.2
Paper
Property, Plant, And Equipment [Line Items]
Recoverability test results recoverable percentage						100.00%

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- Definition

Recoverability test results recoverable percentage.

+ References

No definition available.

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- Definition

Future cash outflow to pay for purchases of fixed assets that have occurred.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of accelerated depreciation charged against earnings associated with exit from or disposal of business activities or restructuring plan.

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