Note 2 - Summary of Accounting Policies (Details Textual) $ in Thousands		3 Months Ended		12 Months Ended
		Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Sep. 01, 2021 USD ($)
Accounts Receivable, before Allowance for Credit Loss		$ 550,122		$ 550,122
Accounts Receivable, Allowance for Credit Loss, Ending Balance		27,664		27,664	$ 12,025
Accounts Receivable, Credit Loss Expense (Reversal)	[1]			17,966
Depreciation, Total				52,821	42,155	$ 36,493
Goodwill and Intangible Asset Impairment, Total				0	0	0
Amortization of Financing Costs and Debt Discount Premium				3,234	2,589	2,598
Deferred Costs Amortization Expense, Next Twelve Months		3,885		3,885
Deferred Costs Amortization Expense, Year Two		3,923		3,923
Deferred Costs Amortization Expense, Year Three		3,919		3,919
Deferred Costs Amortization Expense, Year Four		3,819		3,819
Deferred Costs Amortization Expense, Year Five		1,028		1,028
Contract with Customer, Liability, Total		33,551		33,551	27,388
Contract with Customer, Liability, Revenue Recognized				27,388
Advertising Expense				100,589	66,660	53,678
Research and Development Expense, Total				159,774	104,303	80,251
Business Combination, Contingent Consideration, Liability, Total		81,533		81,533	146,759
Payment for Contingent Consideration Liability, Financing Activities				16,135	3,750	4,000
Business Combination, Acquisition Related Costs				1,459	21,465	$ 1,411
Acquisition of Off Grid Energy [Member]
Business Combination, Contingent Consideration, Liability, Total							$ 29,054
Payment for Contingent Consideration Liability, Financing Activities			$ 16,135	16,135
ecobee Inc. [Member]
Payment for Contingent Consideration Liability, Financing Activities		542		542
Contingent Consideration, Share Payments, Value		47,123		47,123
Other Accrued Liabilities [Member]
Business Combination, Contingent Consideration, Liability, Total		49,500		49,500	68,665
Other Long-term Liabilities [Member]
Business Combination, Contingent Consideration, Liability, Total		32,033		32,033	$ 78,094
Fair Value, Inputs, Level 2 [Member]
Debt Instrument, Fair Value Disclosure, Total		516,750		516,750
Term Loan [Member]
Long-Term Debt, Total		$ 523,305		523,305
Clean Energy Product [Member]
Accounts Receivable, Credit Loss Expense (Reversal)			$ 17,926	$ 17,926
Accounts Receivable [Member] | Customer Concentration Risk [Member] | One Customer [Member]
Concentration Risk, Percentage				11.00%	8.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member]
Number of Major Customers				0	0	0
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | No Customer [Member]
Concentration Risk, Percentage				4.00%	6.00%	6.00%

[1] Includes a specific credit loss provision of $17,926 recorded during the third quarter of 2022 for a clean energy product customer that filed for bankruptcy.