Escrow deposit related to sale of business.

No definition available.

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- Definition

Restructuring charges approximate paid over period.

+ References

No definition available.

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- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

+ Details

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- Definition

Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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- Definition

The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

+ References

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- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Amount of expected cost remaining for the specified restructuring cost.

+ References

No definition available.

+ Details

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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

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.

+ References

No definition available.

+ Details

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RESTRUCTURING AND DIVESTITURES - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended		30 Months Ended
	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2018
Restructuring Cost And Reserve [Line Items]
Proceeds from sale of business		$ 13.6	$ 8.2
Selling, General and Administrative Expenses
Restructuring Cost And Reserve [Line Items]
Restructuring charges		$ 5.3
Restructuring charges approximate paid over period		2 years
Restructuring charges future payments outstanding		$ 4.6
All Other \| Selling, General and Administrative Expenses
Restructuring Cost And Reserve [Line Items]
Restructuring charges		4.6
International Regulated Waste And Compliance Services \| United Kingdom
Restructuring Cost And Reserve [Line Items]
Proceeds from sale of business			8.2
Consideration for sale of business	$ 11.5		11.5	$ 11.5
Consideration from business sale held in escrow			3.3
International Regulated Waste And Compliance Services \| Disposal Group, Disposed of by Sale, Not Discontinued Operations \| United Kingdom
Restructuring Cost And Reserve [Line Items]
Proceeds from sale of business		14.9
International Regulated Waste And Compliance Services \| Disposal Group, Disposed of by Sale, Not Discontinued Operations \| United Kingdom \| Note Receivable Due in Nine Months
Restructuring Cost And Reserve [Line Items]
Proceeds from sale of business		1.3
International Regulated Waste And Compliance Services \| Selling, General and Administrative Expenses
Restructuring Cost And Reserve [Line Items]
Restructuring charges		0.6
International Regulated Waste And Compliance Services \| Selling, General and Administrative Expenses \| Disposal Group, Disposed of by Sale, Not Discontinued Operations \| United Kingdom
Restructuring Cost And Reserve [Line Items]
Pre-tax gain from sale		5.8
International Regulated Waste And Compliance Services \| Selling, General and Administrative Expenses \| Assets and Liabilities Held for Sale, Not Discontinued Operations \| United Kingdom
Restructuring Cost And Reserve [Line Items]
Non-cash impairment charges	0.1		4.2	$ 14.8
Domestic And Canada Regulated Waste And Compliance Services \| Selling, General and Administrative Expenses
Restructuring Cost And Reserve [Line Items]
Restructuring charges		$ 0.1
Domestic And Canada Regulated Waste And Compliance Services \| Selling, General and Administrative Expenses \| Assets and Liabilities Held for Sale, Not Discontinued Operations
Restructuring Cost And Reserve [Line Items]
Non-cash impairment charges	$ 6.9		$ 6.9