BUSINESS COMBINATIONS AND EXCHANGES - Purchase Price Allocation for Cadence13 (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Oct. 16, 2019
Business Acquisition [Line Items]
Goodwill	$ 82,176	$ 62,215	$ 43,920
Cadence 13
Business Acquisition [Line Items]
Net property and equipment				$ 654
Operating lease right-of-use asset				62
Deferred tax asset				2,900
Other assets, net of accumulated amortization				5,977
Goodwill				31,392
Total intangible and other assets				40,331
Operating lease liabilities				(985)
Net working capital				(757)
Fair value of net assets acquired				$ 39,243