Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Operating activities
Net income	$ 22.6	$ 27.6
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	17.2	13.3
Non-cash stock-based compensation	5.4	4.4
Provisions (reversals) for credit losses on accounts receivable	0.7	(0.1)
Deferred income taxes	1.8	2.8
Other	(1.7)	1.3
Changes in operating assets and liabilities
Accounts receivable	(11.9)	(13.4)
Prepaid expenses and other current assets	3.5	10.3
Accounts payable	3.1	9.7
Accrued liabilities and other	(19.7)	(20.2)
Net cash provided by operating activities	21.0	35.7
Investing activities
Purchases of property and equipment	(11.3)	(9.1)
Acquisition of other intangible assets	0.0	(1.8)
Proceeds from sale of equipment	0.0	0.2
Noncontrolling interest buyout	(2.2)	0.0
Net cash used in investing activities	(13.5)	(10.7)
Financing activities
Proceeds from credit facility revolver	256.8	173.2
Payments on credit facility revolver	(232.9)	(198.2)
Proceeds from credit facility term loan	0.0	17.2
Payments on credit facility term loan	(2.5)	(4.2)
Payments of debt issuance costs	0.0	(2.5)
Payments on other long-term borrowings	(3.8)	(5.4)
Payments of withholding taxes on share-based compensation	(0.4)	0.0
Distributions to noncontrolling interests	(1.4)	(1.2)
Repurchases of common stock	(11.1)	(4.9)
Net cash provided by (used in) financing activities	4.7	(26.0)
Effect of exchange rate changes on cash and cash equivalents	0.0	(0.1)
Increase (decrease) in cash and cash equivalents	12.2	(1.1)
Cash and cash equivalents at beginning of year	12.4	15.7
Cash and cash equivalents at end of period	24.6	14.6
Cash paid (received) during the period for
Interest	13.6	7.8
Income taxes, net	$ 4.0	$ (12.7)