Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating activities
Net income	$ (9,232)	$ 5,019
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income tax provision (benefit)	(1,882)	1,407
Depreciation and amortization	22,597	21,833
Losses on sale of equipment	3,206	1,229
Share based compensation	836	856
Other	2,652	308
Changes in operating assets and liabilities:
Receivables	(3,183)	3,560
Prepaid insurance and licenses	(5,784)	(4,761)
Operating supplies	(151)	(285)
Other assets	386	383
Accounts payable and other accrued liabilities	8,788	(2,844)
Accrued wages and benefits	1,845	(1,226)
Net cash provided by operating activities	20,078	25,479
Investing activities
Payments for purchases of property and equipment	(76,761)	(36,604)
Proceeds from sales of property and equipment	9,650	13,115
Other	(2,000)
Sale of subsidiary, net of cash		(9,002)
Net cash used in investing activities	(69,111)	(32,491)
Financing activities
Borrowings under lines of credit	147,654
Payments under lines of credit	(70,654)
Borrowings under long-term debt	142,644	14,355
Payments of long-term debt and finance leases	(171,266)	(31,128)
Payments of financing costs and original issue discount	(1,255)
Payments of long-term consideration for business acquisition	(1,000)	(990)
Tax withholding related to net share settlement of restricted stock awards	(91)	(39)
Proceeds from issuance of common stock under ESPP	420
Proceeds from long-term consideration for sale of subsidiary	144
Book overdraft	2,376	5,233
Net cash (used in) provided by financing activities	48,972	(12,569)
Cash included in assets held for sale		11,784
Net change in cash and cash equivalents	(61)	(7,797)
Cash and cash equivalents:
Beginning of period	5,687	9,892
End of period	5,626	2,095
Supplemental disclosure of cash flow information
Cash paid during the year for interest	4,215	5,620
Cash paid during the year for income taxes	243	(91)
Supplemental disclosure of significant noncash investing and financing activities
Finance lease extinguishments		33
Debt obligations relieved in conjunction with the divestiture of Xpress Internacional		$ 7,109
Property and equipment amounts accrued in accounts payable	$ 2,397