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Note 3 - Acquisitions (Details Textual) - USD ($) $ in Thousands						1 Months Ended	3 Months Ended				12 Months Ended
	Dec. 01, 2021	Sep. 01, 2021	Jul. 02, 2021	Jun. 01, 2021	Oct. 07, 2020	Dec. 31, 2021	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Sep. 30, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Payments to Acquire Businesses, Net of Cash Acquired, Total											$ 25,065	$ 713,471	$ 64,797
Goodwill, Ending Balance						$ 1,409,674		$ 1,400,880			1,400,880	1,409,674	855,228
Business Combination, Contingent Consideration, Liability, Total						146,759		81,533			81,533	146,759
Payment for Contingent Consideration Liability, Financing Activities											16,135	3,750	4,000
EEC and Blue Pillar [Member]
Payments to Acquire Businesses, Net of Cash Acquired, Total											25,654
Acquisition of Deep Sea [Member]
Payments to Acquire Businesses, Net of Cash Acquired, Total				$ 420,700
Business Acquisition, Purchase Price Allocation, Intangible Assets Including Goodwill				437,874
Goodwill, Ending Balance				$ 263,604		263,604						263,604
Acquisition of Chilicon [Member]
Business Acquisition, Purchase Price Allocation, Intangible Assets Including Goodwill			$ 70,174
Goodwill, Ending Balance			36,974
Business Combination, Consideration Transferred, Total			$ 61,129
Acquisition of Off Grid Energy [Member]
Payments to Acquire Businesses, Net of Cash Acquired, Total		$ 56,949
Business Acquisition, Purchase Price Allocation, Intangible Assets Including Goodwill		56,076
Goodwill, Ending Balance		21,531
Business Combination, Contingent Consideration, Liability, Total		$ 29,054
Payment for Contingent Consideration Liability, Financing Activities									$ 16,135		16,135
ecobee Inc. [Member]
Payments to Acquire Businesses, Net of Cash Acquired, Total						735,577
Business Acquisition, Purchase Price Allocation, Intangible Assets Including Goodwill	$ 806,131
Goodwill, Ending Balance	248,231					$ 248,231						248,231
Business Combination, Consideration Transferred, Total	$ 735,577
Payment for Contingent Consideration Liability, Financing Activities								542			542
Contingent Consideration, Share Payments, Value								$ 47,123			47,123
Contingent Consideration, Share Payment, Shares (in shares)								196,531
ecobee Inc. [Member] | Forecast [Member]
Contingent Consideration, Share Payments, Value							$ 45,000
Contingent Consideration, Share Payment, Shares (in shares)							466,188
Other 2021 Acquisitions [Member]
Payments to Acquire Businesses, Net of Cash Acquired, Total												29,945
Acquisition of Enbala [Member]
Payments to Acquire Businesses, Net of Cash Acquired, Total					$ 41,982
Business Acquisition, Purchase Price Allocation, Intangible Assets Including Goodwill					46,338
Goodwill, Ending Balance					$ 27,038
Other 2020 Acquisitions [Member]
Payments to Acquire Businesses, Net of Cash Acquired, Total										$ 22,958
All Acquisitions [Member]
Proforma Amortization of Intangible Assets											$ 941,000	$ 68,247,000	$ 84,151,000

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