Note 2 - Acquisitions (Details Textual) - USD ($) $ in Thousands					6 Months Ended		12 Months Ended
	Dec. 01, 2021	Sep. 01, 2021	Jul. 02, 2021	Jun. 01, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Payments to Acquire Businesses, Net of Cash Acquired, Total					$ 11,421	$ 419,017
Goodwill, Ending Balance					1,388,051		$ 1,409,674
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
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
Other 2021 Acquisitions [Member]
Payments to Acquire Businesses, Net of Cash Acquired, Total	$ 735,632						$ 29,945
Business Acquisition, Purchase Price Allocation, Intangible Assets Including Goodwill					798,746
Goodwill, Ending Balance					$ 243,346