Other Current Assets (Tables)

9 Months Ended

Sep. 30, 2020

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of other current assets net book value

The following table shows the breakdown in other current assets net book value for the presented periods:

	December 31, 2019		September 30, 2020
	(in thousands)
Prepayments to suppliers	$	5,109	$	5,168
Other debtors	4,225		4,538
Prepaid expenses	7,891		9,572
Gross book value at end of period	17,225		19,278
Net book value at end of period	$	17,225	$	19,278