CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Net income	$ 17,286	$ 17,101	$ 34,740	$ 33,051
Other comprehensive income / (loss):
Foreign currency translation gain / (loss)	(83)	5	(114)	15
Total comprehensive income	$ 17,203	$ 17,106	$ 34,626	$ 33,066