SIGNIFICANT ACQUISITIONS - Narrative (Details) kr in Thousands			3 Months Ended		6 Months Ended
	Jun. 21, 2022 USD ($)	Jun. 21, 2022 NOK (kr)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 NOK (kr)	Dec. 31, 2021 USD ($)
Business Acquisition [Line Items]
Cash paid for acquisition, net of cash acquired					$ 295,660,000	$ 0
Contingent consideration liability			$ 24,793,000		24,793,000			$ 0
Goodwill			731,772,000		731,772,000			$ 523,949,000
Kechu BidCo AS
Business Acquisition [Line Items]
Business combination acquiring | kr		kr 3,301,341
Total amount paid on acquisition date	$ 332,673,000
Kappa bank debt paid on purchase date	30,648,000	303,672
Cash acquired from acquisition	6,365,000	63,064
Cash paid for acquisition, net of cash acquired	326,820,000	kr 3,238,277
Contingent consideration liability			24,793,000		24,793,000		kr 245,000
Goodwill	$ 212,591,000
Transaction and integration related costs			451,000	$ 0	451,000	0
Pre forma net earnings			30,172,000	$ 26,344,000	58,648,000	$ 50,379,000
Acquisition related costs			$ 643,000		$ 722,000
Kechu BidCo AS | Customer relationships
Business Acquisition [Line Items]
Useful life of intangible assets acquired	15 years	15 years
Kechu BidCo AS | Corporate trademark
Business Acquisition [Line Items]
Useful life of intangible assets acquired	2 years	2 years
Kechu BidCo AS | Product trademarks
Business Acquisition [Line Items]
Useful life of intangible assets acquired	10 years	10 years
Kechu BidCo AS | Developed technology
Business Acquisition [Line Items]
Useful life of intangible assets acquired	12 years	12 years
Kechu BidCo AS | Former Shareholder
Business Acquisition [Line Items]
Total amount paid on acquisition date | kr		kr 2,997,669
Cash paid for acquisition, net of cash acquired	$ 302,537,000