Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Operating activities:
Net income	$ 41.6	$ 51.7
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	75.3	72.8
Stock-based compensation expense	8.3	7.6
Provision for deferred income taxes	14.4	55.3
Net gains on railcar lease fleet sales owned more than one year at the time of sale	(2.1)	0.0
Gains on dispositions of property and other assets	(0.2)	(1.3)
Non-cash interest expense	7.4	7.3
Other	(0.3)	0.1
Changes in assets and liabilities:
(Increase) decrease in receivables	49.4	24.1
(Increase) decrease in inventories	13.1	33.7
(Increase) decrease in other assets	(1.0)	22.1
Increase (decrease) in accounts payable	8.0	0.3
Increase (decrease) in accrued liabilities	(42.6)	(26.6)
Increase (decrease) in other liabilities	2.4	(27.0)
Net cash provided (required) by operating activities	173.7	220.1
Investing activities:
(Increase) decrease in short-term marketable securities	98.7	42.6
Proceeds from dispositions of property and other assets	2.5	3.6
Proceeds from railcar lease fleet sales owned more than one year at the time of sale	15.5	0.0
Capital expenditures – leasing	(318.2)	(162.9)
Capital expenditures – manufacturing and other	(15.8)	(24.3)
Acquisitions, net of cash acquired	(25.0)	0.0
Other	0.8	0.5
Net cash provided (required) by investing activities	(241.5)	(140.5)
Financing activities:
Payments to retire debt	(26.5)	(26.7)
Proceeds from issuance of debt	0.9	0.0
Shares repurchased	(49.3)	0.0
Dividends paid to common shareholders	(19.5)	(16.7)
Purchase of shares to satisfy employee tax on vested stock	(0.1)	0.0
Distributions to noncontrolling interest	(5.8)	(7.3)
Other	(3.0)	0.0
Net cash provided (required) by financing activities	(103.3)	(50.7)
Net increase (decrease) in cash, cash equivalents, and restricted cash	(171.1)	28.9
Cash, cash equivalents, and restricted cash at beginning of period	973.8	741.6
Cash, cash equivalents, and restricted cash at end of period	$ 802.7	$ 770.5