CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 181,919	$ 177,321
Short-term investments	149,349	148,769
Restricted cash	786	2,095
Trade receivables	65,139	58,859
Receivables and prepaid expenses	42,483	29,202
Inventories	22,502	23,701
Total current assets	462,178	439,947
LONG-TERM ASSETS:
Property and equipment, net	9,778	9,342
Field equipment, net	8,467	7,684
Right-of-use assets, net	17,201	17,571
Other long-term assets	4,824	4,904
Total long-term assets	40,270	39,501
TOTAL ASSETS	502,448	479,448
CURRENT LIABILITIES:
Trade payables	40,408	36,925
Other payables, lease liabilities and accrued expenses	43,795	49,386
Total current liabilities	84,203	86,311
LONG-TERM LIABILITIES:
Long-term loan, net of discount and issuance costs	149,465	149,424
Deferred revenue	8,772	7,807
Long-term leases	13,274	14,140
Employee benefits	4,519	3,754
Other long-term liabilities	267	222
Total long-term liabilities	176,297	175,347
TOTAL LIABILITIES	260,500	261,658
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS' EQUITY:
Ordinary shares no par value, unlimited shares authorized; issued and outstanding: 100,362,973 shares and 99,528,435 shares at March 31, 2020 (unaudited) and December 31, 2019, respectively	0	0
Additional paid-in capital	892,510	871,442
Accumulated other comprehensive income (loss)	(3,629)	(2,767)
Retained earnings (accumulated deficit)	(646,933)	(650,885)
TOTAL SHAREHOLDERS' EQUITY	241,948	217,790
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 502,448	$ 479,448