Immaterial Restatement of Prior Period Financial Statements (Tables)

6 Months Ended

Jun. 30, 2019

Accounting Changes and Error Corrections [Abstract]

Schedule of Error Corrections and Prior Period Adjustments

The corrections to the Company's Condensed Consolidated Statements of Income for the three and six months ended June 30, 2018 were as follows:

Condensed Consolidated Statements of Income

	For the three months ended June 30, 2018
	As Previously Reported		Corrections		As Corrected
	(In thousands, except per share data)
Operating revenue	$	172,632	$	2,306	$	174,938
Operating expenses:
Income taxes	4,347		523		4,870
Total operating expenses	147,576		523		148,099
Net operating income	25,056		1,783		26,839
Net income	$	13,022	$	1,783	$	14,805
Earnings per share:
Basic	$	0.27	$	0.04	$	0.31
Diluted	$	0.27	$	0.04	$	0.31

	For the six months ended June 30, 2018
	As Previously Reported		Corrections		As Corrected
	(In thousands, except per share data)
Operating revenue	$	304,879	$	4,612	$	309,491
Operating expenses:
Income taxes	4,118		1,046		5,164
Total operating expenses	271,770		1,046		272,816
Net operating income	33,109		3,566		36,675
Net income	$	10,477	$	3,566	$	14,043
Earnings per share:
Basic	$	0.22	$	0.07	$	0.29
Diluted	$	0.22	$	0.07	$	0.29

The corrections to the Company's retained earnings and total stockholders’ equity as of January 1, 2018, March 31, 2018, and June 30, 2018 were as follows:

	January 1, 2018
	As Previously Reported		Corrections		As Corrected
	(In thousands)
Retained earnings	$	356,753	$	5,759	$	362,512
Total common stockholders' equity	693,462		5,759		699,221

	March 31, 2018
	As Previously Reported		Corrections		As Corrected
	(In thousands)
Retained earnings	$	345,205	$	7,542	$	352,747
Total common stockholders' equity	681,311		7,542		688,853

	June 30, 2018
	As Previously Reported		Corrections		As Corrected
	(In thousands)
Retained earnings	$	349,213	$	9,325	$	358,538
Total common stockholders' equity	685,932		9,325		695,257

The corrections to the Company's Condensed Consolidated Statement of Cash Flows for the six months ended June 30, 2018 were as follows:

Condensed Consolidated Statement of Cash Flows

	For the six months ended June 30, 2018
	As Previously Reported		Corrections			As Corrected
	(In thousands)
Operating activities:
Net income	$	10,477	$	3,566		$	14,043
Other changes in noncurrent assets and liabilities	13,705		(3,566		)	10,139
Net cash provided by operating activities	$	49,571	$	—		$	49,571