Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Operating activities
Net income	$ (204)	$ 8,005
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income tax provision (benefit)	301	1,824
Depreciation and amortization	45,683	44,401
Losses on sale of equipment	6,403	3,413
Share based compensation	2,000	1,880
Other	2,967	572
Gain on sale of subsidiary		(670)
Changes in operating assets and liabilities, net of acquisitions:
Receivables	(3,027)	5,320
Prepaid insurance and licenses	1,933	612
Operating supplies	95	72
Other assets	1,085	(3,288)
Accounts payable and other accrued liabilities	11,822	(2,167)
Accrued wages and benefits	2,738	(2,401)
Net cash provided by operating activities	71,796	57,573
Investing activities
Payments for purchases of property and equipment	(87,270)	(105,137)
Proceeds from sales of property and equipment	24,101	23,041
Other	(1,880)
Sale of subsidiary, net of cash		(8,259)
Net cash used in investing activities	(65,049)	(90,355)
Financing activities
Borrowings under lines of credit	180,254	10,700
Payments under lines of credit	(180,254)	(9,900)
Borrowings under long-term debt	183,662	65,704
Payments of long-term debt and finance leases	(196,742)	(51,936)
Payments of financing costs and original issue discount	(1,276)
Payments of long-term consideration for business acquisition	(1,000)	(990)
Purchase of noncontrolling interest		(8,659)
Tax withholding related to net share settlement of restricted stock awards	(93)	(44)
Proceeds from issuance of common stock under ESPP	420
Proceeds from long-term consideration for sale of subsidiary	290
Book overdraft	3,631	9,791
Net cash (used in) provided by financing activities	(11,108)	14,666
Cash included in assets held for sale		11,784
Net change in cash and cash equivalents	(4,361)	(6,332)
Cash and cash equivalents:
Beginning of period	5,687	9,892
End of period	1,326	3,560
Supplemental disclosure of cash flow information
Cash paid during the year for interest	9,222	10,622
Cash paid during the year for income taxes	160	252
Supplemental disclosure of significant noncash investing and financing activities
Subsidiary stock issued in business combination	7,278
Debt obligations relieved in conjunction with the divestiture of Xpress Internacional		$ 7,109
Property and equipment amounts accrued in accounts payable	$ 1,245