Acquisitions and Dispositions.

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- Definition

Business combination consideration amount held in escrow and liabilities assumed.

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- Definition

Business combination recognized identifiable assets acquired and liabilities assumed current liabilities accounts payable and accrued liabilities.

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- Definition

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

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- Definition

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

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- Definition

Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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- Definition

Amount, after allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences and carryforwards acquired at the acquisition date, classified as current.

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- Definition

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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- Definition

Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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- Definition

Fair value at acquisition-date of the equity interest in the acquiree held by the acquirer, immediately before the acquisition date for businesses combined in stages.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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Acquisitions and Dispositions - Schedule of Preliminary Purchase Price Allocation for Acquisition (Details) - USD ($) $ in Millions		3 Months Ended		12 Months Ended
	Dec. 18, 2018	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Acquisitions And Dispositions [Line Items]
Goodwill		$ 450.2		$ 450.0
Net cash paid		2.2	$ 0.0
eBrevia
Acquisitions And Dispositions [Line Items]
Accounts receivable	$ 0.3
Goodwill	12.9
Accounts payable and accrued liabilities	(0.4)
Deferred taxes-net	(1.7)
Total purchase price-net of cash acquired	23.3
Less: fair value of the Company's previously held investment in eBrevia	(3.3)			(3.3)
Less: fair value of contingent consideration	(0.8)	$ (0.8)
Less: payable for initial consideration	(2.0)			$ (2.0)
Less: amounts held in escrow and liabilities assumed	(2.5)
Net cash paid	14.7
eBrevia \| Other Intangible Assets
Acquisitions And Dispositions [Line Items]
Intangible assets	11.4
eBrevia \| Software
Acquisitions And Dispositions [Line Items]
Intangible assets	$ 0.8