Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2018

Accounting Standards Update (ASU) No. 2014-09, Revenue from Contracts with Customers

Effect of Adoption of Standard on Previously Reported Financial Data

The below tables reflect the effect of the adoption of this standard on the previously reported financial data.

Condensed Consolidated Balance Sheet impact:

	As of December 31, 2017
		As adjusted		As originally reported		Effect of change
	(in thousands)
Accounts receivable		$	170,278	$	170,610	$	(332	)
Total current assets			203,249		203,581		(332	)
Total assets			967,315		967,647		(332	)
Accounts payable			57,438		57,717		(279	)
Total current liabilities			166,926		167,205		(279	)
Retained earnings			339,500		339,553		(53	)
Total stockholders’ equity			582,494		582,547		(53	)
Total liabilities and stockholders’ equity			967,315		967,647		(332	)

Condensed Consolidated Statement of Operations impact:

	For the quarter ended March 31, 2017
		As adjusted		As originally reported		Effect of change
	(in thousands, except per share data)
Operating revenue		$	323,090	$	317,037	$	6,053
Purchased transportation			20,820		14,775		6,045
Total operating expenses			305,563		299,518		6,045
Operating income			17,527		17,519		8
Net income			11,395		11,387		8
Basic Earnings Per Share			0.45		0.45		—
Diluted Earnings Per Share			0.44		0.44		—

Condensed Consolidated Statement of Cash Flows impact:

	For the quarter ended March 31, 2017
		As adjusted			As originally reported			Effect of change
	(in thousands)
Net income		$	11,395		$	11,387		$	8
Changes in operating assets and liabilities, net			(12,765	)		(12,757	)		(8	)
Net cash provided by operating activities			24,128			24,128			—
Net decrease in cash and cash equivalents			(828	)		(828	)		—