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Note 12 - Segment Information and Information About Geographic Area - Revenue and Property and Equipment, Net by Geographic Area (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Revenues $ 113,420 $ 96,756  
Property and equipment, net and Operating leases - right of use asset 97,946   $ 98,870
UNITED STATES      
Revenues 67,476 60,132  
Property and equipment, net and Operating leases - right of use asset 67,394   66,440
INDIA      
Property and equipment, net and Operating leases - right of use asset 19,375   20,401
Non-US [Member]      
Revenues 45,944 $ 36,624  
Other Geographic Areas [Member]      
Property and equipment, net and Operating leases - right of use asset $ 11,177   $ 12,029