CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating activities
Net income	$ 20.3	$ 26.1	$ 14.8
Adjustments to reconcile net income to net cash provided by operations:
Adjustments to reconcile net income to net cash provided by operating activities:	34.1	30.4	29.5
Net (accretion) amortization of acquired lease contracts	(0.9)	(1.0)	(4.3)
(Gain) loss on sale of equipment	0.4	(0.3)	1.6
(Gain) loss on sale of equity interest in land	0.0	0.0	(1.2)
(Gain) loss on sale of business	(0.5)	0.0	0.0
Amortization of debt issuance costs	0.9	1.3	1.4
Amortization of original discount on borrowings	1.2	1.2	1.3
Non-cash stock-based compensation	3.7	3.3	4.2
Provision for losses on accounts receivable	0.7	0.7	0.2
Excess tax (benefit) expense related to vesting of restricted stock units	(0.3)	0.1	(0.2)
Gain on contribution of a business to an unconsolidated entity	0.0	(4.1)	0.0
Deferred income taxes	(9.7)	(12.1)	2.7
Changes in operating assets and liabilities
Notes and accounts receivable	3.5	5.4	(3.8)
Prepaid assets	3.7	2.6	7.4
Other assets	4.4	(0.5)	(3.1)
Accounts payable	(11.4)	(9.0)	(13.5)
Accrued liabilities	(6.5)	7.5	(2.1)
Net cash provided by operating activities	43.6	51.6	34.9
Investing activities
Purchase of leasehold improvements and equipment	(9.6)	(13.5)	(15.7)
Proceeds from sale of equipment and contract terminations	0.5	0.9	0.8
Cash received from sale of business, net	1.0	0.0	0.0
Proceeds from sale of equity interest in land	0.0	0.0	2.3
Cost of contracts purchased	(3.7)	(2.3)	(0.4)
Contingent payments for businesses acquired	0.0	0.0	(0.3)
Net cash used in investing activities	(11.8)	(14.9)	(13.3)
Financing activities
Contingent payments for businesses acquired	(0.1)	(1.8)	(0.6)
Payments on senior credit facility revolver (Senior Credit Facility and Restated Credit Facility)	(460.9)	(572.6)	(491.6)
Proceeds from senior credit facility revolver (Senior Credit Facility and Restated Credit Facility)	439.5	568.0	491.5
Proceeds from term loan (Restated Credit Facility)	10.4	0.0	0.0
Payments on term loan (Senior Credit Facility and Restated Credit Facility)	(15.0)	(32.3)	(22.5)
Proceeds from (payments on) other long-term borrowings	(0.3)	0.2	(0.6)
Distribution to noncontrolling interest	(3.1)	(2.9)	(2.8)
Payments of debt issuance costs and original discount on borrowings	(1.4)	0.0	0.0
Excess tax (benefit) expense related to vesting of restricted stock units	0.3	(0.1)	0.2
Net cash used in financing activities	(30.6)	(41.5)	(26.4)
Effect of exchange rate changes on cash and cash equivalents	(0.7)	(0.2)	(0.5)
Increase (decrease) in cash and cash equivalents	0.5	(5.0)	(5.3)
Cash and cash equivalents at beginning of year	18.2	23.2	28.5
Cash and cash equivalents at end of year	18.7	18.2	23.2
Cash paid during the period for
Interest	10.7	13.9	16.3
Income taxes, net	$ 18.1	$ 1.3	$ 1.3