Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Current Assets:
Cash and cash equivalents	$ 378.7	$ 238.5
Marketable securities	51.3	41.6
Trade accounts receivable—net of allowance of $6.8 million and $5.2, million, respectively	593.1	527.9
Other receivables	31.8	22.4
Current portion of lease receivables—net of allowance of $0.5 million and $1.7 million, respectively	129.1	104.9
Inventories	60.8	83.1
Prepaid expenses and other current assets	79.5	75.6
Total current assets	1,324.3	1,094.0
Property and equipment:
Transportation equipment	2,900.2	2,770.1
Land, buildings, and improvements	177.2	183.8
Other property and equipment	157.6	175.7
Total property and equipment	3,235.0	3,129.6
Accumulated depreciation	1,312.8	1,271.5
Net property and equipment	1,922.2	1,858.1
Lease receivables	133.2	138.9
Capitalized software and other noncurrent assets	82.6	74.7
Goodwill	162.2	164.8
Total noncurrent assets	2,300.2	2,236.5
Total Assets	3,624.5	3,330.5
Current Liabilities:
Trade accounts payable	226.0	230.4
Accrued salaries and wages	94.8	85.8
Claims accruals—current	58.3	48.3
Current maturities of debt and capital lease obligations	51.7	19.1
Dividends payable	10.6	8.8
Other current liabilities	81.2	69.6
Total current liabilities	522.6	462.0
Noncurrent Liabilities:
Long-term debt and capital lease obligations	359.6	420.6
Claims accruals—noncurrent	113.3	102.5
Deferred income taxes	450.6	386.6
Other	46.1	68.6
Total noncurrent liabilities	969.6	978.3
Commitments and Contingencies (Note 16)
Shareholders' Equity:
Additional paid-in capital	1,544.0	1,534.6
Retained earnings	589.3	355.6
Accumulated other comprehensive income	(1.0)	0.0
Total shareholders' equity	2,132.3	1,890.2
Total liabilities and shareholders' equity	3,624.5	3,330.5
Class A Common Shares
Shareholders' Equity:
Common stock	0.0	0.0
Class B Common Stock
Shareholders' Equity:
Common stock	$ 0.0	$ 0.0