CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
CURRENT ASSETS:
Cash and cash equivalents	$ 208,034	$ 140,622
Short-term investments	104,565	105,256
Restricted cash	2,134	2,134
Trade receivables	49,904	36,523
Receivables and prepaid expenses	17,917	14,279
Inventories	24,388	22,555
Total current assets	406,942	321,369
LONG-TERM ASSETS:
Property and equipment, net	8,425	8,442
Field equipment, net	8,139	6,924
Right-of-use assets, net	14,635	0
Other long-term assets	5,717	3,058
Total long-term assets	36,916	18,424
TOTAL ASSETS	443,858	339,793
CURRENT LIABILITIES:
Trade payables	31,998	26,708
Other payables, lease liabilities and accrued expenses	48,407	37,852
Total current liabilities	80,405	64,560
LONG-TERM LIABILITIES:
Long-term loan, net of discount and issuance costs	149,384	149,268
Deferred revenue	8,341	9,929
Employee benefits	3,701	2,683
Long-term leases	11,367	0
Other long-term liabilities	295	1,094
Total long-term liabilities	173,088	162,974
TOTAL LIABILITIES	253,493	227,534
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS' EQUITY:
Ordinary shares no par value, unlimited shares authorized; issued and outstanding: 98,948,935 shares and 93,254,185 shares at September 30, 2019 (unaudited) and December 31, 2018, respectively	0	0
Additional paid-in capital	848,151	757,314
Accumulated other comprehensive income (loss)	(2,641)	(1,400)
Retained earnings (accumulated deficit)	(655,145)	(643,655)
TOTAL SHAREHOLDERS' EQUITY	190,365	112,259
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 443,858	$ 339,793