SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction

We expect to recognize as revenue the following amounts related to our remaining performance obligations as of December 31, 2019, inclusive of the foreign exchange impact:

Performance Obligation	Balance
	(In millions)
Less than 1 year	$	30.7
1 to 3 years	41.1
3 to 5 years	23.8
Thereafter	47.0
Total remaining performance obligation	$	142.6

Reconciliation of Weighted-Average Outstanding Shares Used in Calculations of Basic and Diluted EPS

A reconciliation of the weighted-average outstanding shares used in the two calculations is as follows:

	Twelve Months Ended December 31,
	2019	2018	2017
	(In millions)
Weighted-average shares outstanding (basic)	120.9	120.4	120.1
Effect of dilutive securities:
Stock options and restricted stock units	1.1	1.0	1.4
Weighted-average shares outstanding (diluted)	122.0	121.4	121.5

Useful Life of Other Purchased Intangible Assets

All of our other purchased intangible assets are also amortized on a straight-line basis.

Asset	Useful Life
	(In years)
Purchased data files	2 to 15
Acquired software and technology	1 to 10
Non-compete agreements	1 to 5
Proprietary database	6 to 10
Customer relationships	2 to 25
Trade names	1 to 15

Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table presents assets and liabilities measured at fair value on a recurring basis:

			Fair Value Measurements at Reporting Date Using:
Description	Fair Value at December 31, 2019		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(In millions)
Assets and Liabilities:
Deferred Compensation Plan Assets (1)	$	40.1	$	40.1	$	—	$	—
Deferred Compensation Plan Liability (1)	(40.1)		—		(40.1)		—
Total assets and liabilities	$	—	$	40.1	$	(40.1)	$	—

(1) We maintain deferred compensation plans that allow for certain management employees to defer the receipt of compensation (such as salary, incentive compensation and commissions) until a later date based on the terms of the plans. The liability representing benefits accrued for plan participants is valued at the quoted market prices of the participants’ investment elections. The asset consists of mutual funds reflective of the participants investment selections and is valued at daily quoted market prices.