CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
CURRENT ASSETS:
Cash and cash equivalents	$ 367,014	$ 208,802
Short-term investments	581,503	728,898
Restricted cash	749	807
Trade receivables, net	97,563	93,567
Receivables and prepaid expenses	18,195	17,025
Inventories	29,531	24,427
Total current assets	1,094,555	1,073,526
LONG-TERM ASSETS:
Property and equipment, net	26,561	22,693
Field equipment, net	12,377	12,923
Right-of-use assets	18,281	18,267
Other long-term assets	10,898	12,086
Total long-term assets	68,117	65,969
TOTAL ASSETS	1,162,672	1,139,495
CURRENT LIABILITIES:
Trade payables	79,910	72,600
Other payables, lease liabilities and accrued expenses	55,489	70,002
Total current liabilities	135,399	142,602
LONG-TERM LIABILITIES:
Long-term debt, net	563,846	562,216
Deferred revenue	4,541	6,477
Long-term leases	13,377	12,997
Employee benefit liabilities	3,598	4,543
Other long-term liabilities	239	166
Total long-term liabilities	585,601	586,399
TOTAL LIABILITIES	721,000	729,001
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS' EQUITY:
Ordinary shares no par value, unlimited shares authorized; issued and outstanding: 104,727,685 shares and 103,971,263 shares at June 30, 2022 (unaudited) and December 31, 2021, respectively	0	0
Additional paid-in capital	1,158,348	1,099,589
Accumulated other comprehensive income (loss)	(2,095)	(3,169)
Retained earnings (accumulated deficit)	(714,581)	(685,926)
TOTAL SHAREHOLDERS' EQUITY	441,672	410,494
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 1,162,672	$ 1,139,495