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Fair Value Measurements - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Settlements of contingent consideration liabilities		$ 7.6	$ 0.0	$ 7.6	$ 0.0
MRL
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	[1]	7.9		7.9
Maximum | MRL
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration		$ 15.5		$ 15.5
[1] estimated fair value of the contingent earn-out payment as of the acquisition date, which is included as a component of Other long-term liabilities on the Condensed Consolidated Balance Sheet. See Note 14 – Fair Value Measurements for discussion of the methodology used to determine the fair value of the contingent earn-out payment.

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- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
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+ References

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Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

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-Publisher FASB
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