CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 45,974	$ 90,679
Accounts receivable, net	209,206	127,368
Drivers’ advances and other receivables	5,461	4,792
Current portion of net investment in sales-type leases	16,213	10,979
Parts supplies	4,914	4,653
Prepaid and other current assets	26,282	28,240
Total current assets	308,050	266,711
Property and equipment, net	572,719	429,639
Intangible assets, net	208,791	93,120
Goodwill	258,365	302,702
Other long-term assets	42,943	33,496
Total assets	1,390,868	1,125,668
Current liabilities:
Accounts payable	22,160	12,488
Accrued expenses and other liabilities	46,542	25,876
Accrued payroll, benefits and related taxes	21,698	14,004
Accrued insurance and claims	18,059	12,644
Current portion of long-term debt	63,535	43,056
Other current liabilities	21,865
Total current liabilities	193,859	108,068
Line of credit		4,561
Long term debt, net of current	622,650	569,740
Deferred tax liabilities	126,830	90,434
Other long-term liabilities	531	1,632
Total liabilities	943,870	774,435
Commitments and contingencies (Note 16)
Stockholders’ equity:
Common stock (par value $0.0001 per share); 250,000,000 shares authorized, 64,455,174 and 48,712,288 shares issued and outstanding at December 31, 2018 and 2017, respectively	6	5
Additional paid-in-capital	433,867	277,931
Retained earnings (accumulated deficit)	(51,005)	7,338
Accumulated other comprehensive income (loss)	(870)	959
Total stockholders’ equity	446,998	351,233
Total liabilities and stockholders’ equity	1,390,868	1,125,668
Series A convertible preferred stock
Stockholders’ equity:
Preferred stock value	65,000	65,000
Total stockholders’ equity	$ 65,000	$ 65,000