Revenue Recognition - Summary of Significant Changes in Contract Assets and Contract Liabilities Balances (Detail) $ in Millions	3 Months Ended
Mar. 31, 2020 USD ($)
Changes in the Contract Assets
Beginning Balance	$ 13.5
Net change in contract assets for products with no alternative use during the period	(0.5)
Changes to reserves	0.5
Ending Balance	13.5
Changes in the Contract Liabilities
Beginning Balance	10.5
Contract liability satisfied during the period	(4.1)
Contract liability incurred during the period	3.3
Changes to reserves	(0.6)
Ending Balance	$ 9.1

Contract asset changes to reserves.

No definition available.

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Balance Type:	debit
Period Type:	duration

- Definition

Contract liability changes to reserves.

+ References

No definition available.

+ Details

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- Definition

Contract with customer liability incurred.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Net change in contract assets for products with no alternative use during period.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
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- References

No definition available.

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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130531-203044

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
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-URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130533-203044

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Balance Type:	debit
Period Type:	instant

- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130531-203044

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-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130532-203044

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- Definition

Amount of revenue recognized arising from contract liability from change in timeframe for performance obligation to be satisfied.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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-Section 50
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+ Details

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