Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating activities
Net income	$ 44.5	$ 26.0	$ 20.3
Adjustments to reconcile net income to net cash provided by operating activities:
Adjustments to reconcile net income to net cash provided by operating activities:	21.7	34.2	34.1
Net accretion of acquired lease contracts	(2.2)	(1.8)	(0.9)
Loss (gain) on sale of equipment	0.2	(0.3)	0.4
Net equity in (earnings) losses of unconsolidated entities (net of distributions)	8.5	(0.5)	(1.6)
Net gain on sale of a business	(0.1)	0.0	(0.5)
Amortization of debt issuance costs	0.7	0.8	1.1
Amortization of original discount on borrowings	0.5	0.5	1.0
Non-cash stock-based compensation	3.1	3.4	3.7
Provision for losses on accounts receivable	0.7	0.4	0.7
Excess tax (benefit) expense related to vesting of restricted stock units	0.0	0.0	(0.3)
Deferred income taxes	1.8	(2.1)	(9.7)
Changes in operating assets and liabilities
Notes and accounts receivable	(2.6)	(15.9)	3.5
Prepaid assets	(1.8)	(1.0)	3.7
Other assets	(2.3)	(1.0)	2.8
Accounts payable	(7.2)	14.8	(11.4)
Accrued liabilities	(3.3)	1.2	(6.5)
Net cash provided by operating activities	45.2	59.7	43.6
Investing activities
Purchase of leasehold improvements and equipment	(6.8)	(13.0)	(9.6)
Proceeds from sale of equipment and contract terminations	0.8	3.0	0.5
Cash received from sale of business, net	0.6	0.0	1.0
Proceeds from sale of equity method investee's sale of assets	8.4	0.0	0.0
Cost of contracts purchased	(0.7)	(3.8)	(3.7)
Net cash provided by (used in) investing activities	2.3	(13.8)	(11.8)
Financing activities
Contingent payments for businesses acquired	0.0	0.0	(0.1)
Payments on senior credit facility revolver (Senior Credit Facility and Restated Credit Facility)	(410.1)	(401.0)	(460.9)
Proceeds from senior credit facility revolver (Senior Credit Facility and Restated Credit Facility)	386.6	385.0	439.5
Proceeds from term loan (Restated Credit Facility)	0.0	0.0	10.4
Payments on term loan (Restated Credit Facility)	(20.0)	(15.0)	(15.0)
Payments on other long-term borrowings	(0.5)	(0.3)	(0.3)
Distribution to noncontrolling interest	(3.2)	(3.3)	(3.1)
Payments of debt issuance costs and original discount on borrowings	0.0	0.0	(1.4)
Excess tax (benefit) expense related to vesting of restricted stock units	0.0	0.0	0.3
Repurchase of common stock	0.0	(7.5)	0.0
Net cash used in financing activities	(47.2)	(42.1)	(30.6)
Effect of exchange rate changes on cash and cash equivalents	0.3	(0.3)	(0.7)
Increase in cash and cash equivalents	0.6	3.5	0.5
Cash and cash equivalents at beginning of year	22.2	18.7	18.2
Cash and cash equivalents at end of year	22.8	22.2	18.7
Cash paid during the period for
Interest	8.0	9.2	10.7
Income taxes, net	26.5	17.6	18.1
Non cash transactions
Capital lease obligations incurred to acquire equipment	$ 1.5	$ 0.0	$ 0.0