CONDENSED CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Ordinary Shares [Member]	Capital in Excess of Par Value [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Accumulated Deficit [Member]	Total
Beginning Balance at Dec. 31, 2020	$ 2	$ 504,482	$ (4,897)	$ (261,028)	$ 238,559
Beginning Balance, Shares at Dec. 31, 2020	44,189,150
Share based compensation activity		4,958			4,958
Share based compensation activity, shares	17,923
Issuance of shares in connection with equity method and other investments		1,165			1,165
Issuance of shares in connection with equity method and other investments, shares	75,000
Other comprehensive income (loss)			(271)		(271)
Net loss				(23,618)	(23,618)
Balance at Mar. 31, 2021	$ 2	510,605	(5,168)	(284,646)	220,793
Balance, Shares at Mar. 31, 2021	44,282,073
Beginning Balance at Dec. 31, 2020	$ 2	504,482	(4,897)	(261,028)	238,559
Beginning Balance, Shares at Dec. 31, 2020	44,189,150
Other comprehensive income (loss)					(678)
Net loss					(43,704)
Balance at Jun. 30, 2021	$ 2	516,027	(5,575)	(304,732)	205,722
Balance, Shares at Jun. 30, 2021	44,309,453
Beginning Balance at Mar. 31, 2021	$ 2	510,605	(5,168)	(284,646)	220,793
Beginning Balance, Shares at Mar. 31, 2021	44,282,073
Share based compensation activity		5,422			5,422
Share based compensation activity, shares	27,380
Other comprehensive income (loss)			(407)		(407)
Net loss				(20,086)	(20,086)
Balance at Jun. 30, 2021	$ 2	516,027	(5,575)	(304,732)	205,722
Balance, Shares at Jun. 30, 2021	44,309,453
Beginning Balance at Dec. 31, 2021	$ 2	528,659	(2,671)	(340,589)	185,401
Beginning Balance, Shares at Dec. 31, 2021	44,548,925
Share based compensation activity		4,996			4,996
Share based compensation activity, shares	161,753
Other comprehensive income (loss)			1,933		1,933
Net loss				(31,045)	(31,045)
Balance at Mar. 31, 2022	$ 2	533,655	(738)	(371,634)	161,285
Balance, Shares at Mar. 31, 2022	44,710,678
Beginning Balance at Dec. 31, 2021	$ 2	528,659	(2,671)	(340,589)	185,401
Beginning Balance, Shares at Dec. 31, 2021	44,548,925
Other comprehensive income (loss)					9,290
Net loss					(65,018)
Balance at Jun. 30, 2022	$ 2	540,958	6,619	(405,607)	141,972
Balance, Shares at Jun. 30, 2022	44,710,678
Beginning Balance at Mar. 31, 2022	$ 2	533,655	(738)	(371,634)	161,285
Beginning Balance, Shares at Mar. 31, 2022	44,710,678
Share based compensation activity		7,303			7,303
Other comprehensive income (loss)			7,357		7,357
Net loss				(33,973)	(33,973)
Balance at Jun. 30, 2022	$ 2	$ 540,958	$ 6,619	$ (405,607)	$ 141,972
Balance, Shares at Jun. 30, 2022	44,710,678