Note 2 - Revision of Previously Issued Financial Statements (Tables)

6 Months Ended

Jun. 30, 2018

Notes Tables

Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]

	Three Months Ended June 30, 2017
	As Reported		Adjustment			As Re vised
Condensed Consolidated Statement of Operations and Comprehensive Income Information
Costs and expenses
Depreciation and amortization	$	46,890	$	1,132		$	48,022
Total costs and expenses		182,395		1,132			183,527
Income from operations		58,647		(1,132	)		57,515
Income before income taxes		46,543		(1,132	)		45,411
Income tax provision		17,967		(430	)		17,537
Net income	$	28,576	$	(702	)	$	27,874
Net income per common share:
Basic	$	5.03	$	(0.12	)	$	4.91
Diluted	$	4.97	$	(0.12	)	$	4.85
Comprehensive income	$	28,578	$	(702	)	$	27,876

	Six Months Ended June 30, 2017
	As Reported		Adjustment			As Re vised
Condensed Consolidated Statement of Operations and Comprehensive Income Information
Costs and expenses
Selling, general and administrative	$	96,927	$	523		$	97,450
Depreciation and amortization		85,295		2,263			87,558
Total costs and expenses		329,468		2,787			332,255
Income from operations		119,001		(2,787	)		116,214
Income before income taxes		99,577		(2,787	)		96,790
Income tax provision		37,787		(1,059	)		36,728
Net income	$	61,790	$	(1,728	)	$	60,062
Net income per common share:
Basic	$	10.88	$	(0.30	)	$	10.58
Diluted	$	10.76	$	(0.30	)	$	10.46
Comprehensive income	$	61,794	$	(1,728	)	$	60,066
Condensed Consolidated Statement of Cash Flows Information
Net income	$	61,790	$	(1,728	)	$	60,062
Depreciation and amortization		85,295		2,263			87,558
Change in accounts receivable, net		1,741		522			2,263
Change in deferred income taxes		7,832		(1,059	)		6,773
Net cash provided by operating activities	$	130,859	$	-		$	130,859