CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues	$ 1,025.7	$ 990.5
Cost of services	744.7	709.6
Gross profit	281.0	280.9
Selling, general and administrative expenses	194.0	197.9
Amortization of intangible assets	12.2	12.1
Operating income	74.8	70.9
Interest expense	(9.2)	(11.4)
Income before income taxes	65.6	59.5
Provision for income taxes	16.9	15.7
Income from continuing operations	48.7
Net income	$ 48.7	$ 43.8
Earnings per share:
Basic earnings per share	$ 0.92	$ 0.83
Diluted earnings per share	$ 0.91	$ 0.82
Number of shares and share equivalents used to calculate earnings per share:
Weighted-average number of common shares outstanding - basic	53.0	52.8
Diluted	53.7	53.3
Reconciliation of net income to comprehensive income:
Net income	$ 48.7	$ 43.8
Foreign currency translation adjustment	(3.2)	(2.5)
Comprehensive income	$ 45.5	$ 41.3