Acquisition of Interstate Distributor Co. (Tables)

12 Months Ended

Dec. 31, 2018

Business Combinations [Abstract]

Business Acquisition, Pro Forma Information [Text Block]

	Year ended		Year ended
	December 31, 2016		December 31, 2017
	(in thousands)
Operating revenue	$	938,007	$	756,498
Net income	$	54,222	$	72,752

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]

The assets and liabilities associated with IDC were recorded at their fair values as of the acquisition date and the amounts are as follows:

	(in thousands)
Cash and cash equivalents	$	6,316
Trade and other accounts receivable	35,131
Other current assets	2,426
Property and equipment	71,964
Other non-current assets	1,244
Intangible assets	7,800
Goodwill	32,198
Total assets	157,079
Accounts payable, accrued expenses, and current portion of long-term debt	(35,209)
Insurance accruals	(10,826)
Long-term debt	(17,404)
Other accruals	(596)
Total consideration transferred	$	93,044

Schedule of Business Acquisitions, by Acquisition [Table Text Block]

TOTAL PURCHASE PRICE CONSIDERATION	(in thousands)
Cash paid pursuant to Stock Purchase Agreement	$	93,044
Cash acquired included in historical book value of IDC assets and liabilities	(6,316)
Net cash paid	$	86,728