Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 341,413	$ 281,277
Accounts receivable, less allowance for credit losses of $34,504 and $35,465 as of December 31, 2025 and 2024, respectively	602,739	612,107
Inventories	1,248,867	1,031,647
Prepaid expenses and other assets	269,459	107,139
Total current assets	2,462,478	2,032,170
Property, Plant and Equipment, Net	813,605	690,023
Customer lists, net	127,517	152,737
Patents and technology, net	338,308	379,095
Other intangible assets, net	10,011	20,026
Tradenames, net	199,430	206,664
Goodwill	1,467,094	1,436,261
Deferred income taxes	41,949	24,132
Operating Lease, Right-of-Use Asset and Other Assets, Noncurrent	113,287	168,223
Total assets	5,573,679	5,109,331
Liabilities, Current [Abstract]
Short-term borrowings	50,618	55,848
Accounts payable	436,583	458,693
Accrued wages and employee benefits	69,850	81,485
Accrued product warranty	44,716	56,127
Other Accrued Liabilities, Current	591,387	313,401
Long-Term Debt and Lease Obligation, Current	22,192	67,598
Total current liabilities	1,215,346	1,033,152
Long-Term Debt and Lease Obligation	1,260,256	1,210,776
Deferred income taxes	60,913	33,185
Deferred revenue	232,921	193,260
Operating Lease, Liability, Noncurrent And Other Long-term Liabilities	165,197	141,515
Total liabilities	2,934,633	2,611,888
Redeemable noncontrolling interest	742	0
Stockholders’ equity:
Common stock, par value $0.01, 500,000,000 shares authorized, 74,050,753 and 73,785,631 shares issued as of December 31, 2025 and 2024, respectively	741	738
Additional paid-in capital	1,187,419	1,133,756
Treasury stock, at cost, 15,373,990 and 14,173,697 shares as of December 31, 2025 and 2024, respectively	(1,358,053)	(1,196,997)
Excess purchase price over predecessor basis	(202,116)	(202,116)
Retained earnings	3,003,557	2,844,296
Accumulated other comprehensive income (loss)	874	(85,399)
Stockholders’ equity attributable to Generac Holdings Inc.	2,632,422	2,494,278
Noncontrolling interests	5,882	3,165
Total stockholders’ equity	2,638,304	2,497,443
Total liabilities and stockholders’ equity	$ 5,573,679	$ 5,109,331