Represents the amount allocated to goodwill and intangible assets on the acquisition date.

No definition available.

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The amount of contingent earn-out obligation included in purchase price.

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No definition available.

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The number of businesses acquired by the entity during the period that are reported as a separate operating location.

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No definition available.

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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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No definition available.

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

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The number of businesses acquired by the entity during the period.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Acquisitions (Details) $ in Millions		3 Months Ended			9 Months Ended	12 Months Ended
Acquisitions (Details) $ in Millions	Apr. 01, 2017 USD ($)	Sep. 30, 2018 item	Jun. 30, 2018 item	Mar. 31, 2018 item	Sep. 30, 2018 USD ($) item	Dec. 31, 2017 USD ($) item
Acquisitions
Total purchase price					$ 94.0	$ 9.4
Number of acquisitions \| item		2	3	2		4
Number of acquisitions reported as separate operating location \| item		1
Notes to former owners
Acquisitions
Number of acquisitions \| item					6
BCH
Acquisitions
Total purchase price	$ 121.3
Amount allocated to goodwill and identifiable intangible assets for acquisitions	97.0
Purchase price paid in cash	95.4
Promissory note payable	14.3
Contingent earn-out obligation	$ 11.6