ACQUISITIONS (Fair Values and Useful Lives of Intangible Assets Acquired) (Details) - USD ($) $ in Thousands	Nov. 03, 2021	Jul. 23, 2021	Apr. 02, 2021	Apr. 30, 2019
test IO
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired, amount				$ 6,219
PolSource
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired, amount			$ 15,790
CORE
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired, amount		$ 8,368
Emakina
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired, amount	$ 30,488
Customer relationships | test IO
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)				7 years
Finite-lived intangible assets acquired, amount				$ 2,456
Customer relationships | PolSource
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)			6 years
Finite-lived intangible assets acquired, amount			$ 14,790
Customer relationships | CORE
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)		6 years
Finite-lived intangible assets acquired, amount		$ 7,779
Customer relationships | Emakina
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	7 years
Finite-lived intangible assets acquired, amount	$ 27,822
Software | test IO
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)				6 years
Finite-lived intangible assets acquired, amount				$ 3,461
Trade names | test IO
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)				4 years
Finite-lived intangible assets acquired, amount				$ 302
Trade names | PolSource
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)			3 years
Finite-lived intangible assets acquired, amount			$ 1,000
Trade names | CORE
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)		5 years
Finite-lived intangible assets acquired, amount		$ 589
Trade names | Emakina
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	3 years
Finite-lived intangible assets acquired, amount	$ 2,666