Note 1 - Description of Business and Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2018

Notes Tables

Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]

Condensed Consolidated Balance Sheets	September 30, 2017
	As Reported		Impact of Adoption			As Adjusted
Accounts receivable	$	320,626	$	(4,207	)	$	316,419
Inventories		349,023		7,359			356,382
Other accrued liabilities		109,362		5,584			114,946
Deferred income taxes		49,528		(3,367	)		46,161
Other long-term liabilities		69,556		6,178			75,734
Retained earnings	$	535,172	$	(5,243	)	$	529,929

	December 31, 2017
	As Reported		Impact of Adoption			As Adjusted
Accounts receivable	$	280,002	$	(708	)	$	279,294
Inventories		380,341		6,708			387,049
Other accrued liabilities		105,067		7,551			112,618
Deferred income taxes		43,789		(1,937	)		41,852
Other long-term liabilities		76,995		5,898			82,893
Retained earnings	$	616,347	$	(5,513	)	$	610,835

Condensed Consolidated Statements of Comprehensive Income	Three Months Ended September 30, 2017
	As Reported		Impact of Adoption			As Adjusted
Net sales	$	457,253	$	(1,414	)	$	455,839
Cost of goods sold		299,784		(176	)		299,608
Selling and service expenses		44,402		(939	)		43,463
Research and development expenses		10,864		(14	)		10,850
General and administrative expenses		22,102		26			22,128
Other, net		1,570		140			1,710
Provision for income taxes		20,581		(177	)		20,404
Net income attributable to Generac Holdings Inc.	$	39,709	$	(274	)	$	39,435
Earnings per share
Basic	$	0.64	$	-		$	0.64
Diluted	$	0.64	$	(0.01	)	$	0.63
Comprehensive income attributable to Generac Holdings Inc.	$	43,213	$	(274	)	$	42,939

	Nine Months Ended September 30, 2017
	As Reported		Impact of Adoption			As Adjusted
Net sales	$	1,184,443	$	(3,244	)	$	1,181,199
Cost of goods sold		782,028		1,219			783,247
Selling and service expenses		127,702		(2,762	)		124,940
Research and development expenses		31,732		(42	)		31,690
General and administrative expenses		64,436		72			64,508
Other, net		3,105		420			3,525
Provision for income taxes		42,946		(841	)		42,105
Net income attributable to Generac Holdings Inc.	$	78,211	$	(1,310	)	$	76,901
Earnings per share
Basic	$	1.27	$	(0.02	)	$	1.25
Diluted	$	1.26	$	(0.02	)	$	1.24
Comprehensive income attributable to Generac Holdings Inc.	$	92,177	$	(1,310	)	$	90,867

Condensed Consolidated Statement of Cash Flows	Nine Months Ended September 30, 2017
	As Reported			Impact of Adoption			As Adjusted
Net income	$	78,644		$	(1,310	)	$	77,334
Deferred income taxes		28,703			(3,367	)		25,336
Accounts receivable		(70,108	)		2,105			(68,003	)
Inventories		16,738			(7,359	)		9,379
Other accrued liabilities		17,319			7,829			25,148
Net cash provided by operating activities	$	122,719		$	(2,102	)	$	120,617
Proceeds from beneficial interests in securitization transactions	$	-		$	2,102		$	2,102
Net cash used in investing activities	$	(15,324	)	$	2,102		$	(13,222	)