CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 476,904	$ 197,708
Short-term investments	503,587	669,353
Accounts receivable, net of allowance for doubtful accounts of $ 624 and $703 at September 30, 2015 and December 31, 2014, respectively	115,393	111,993
Revenue earned in excess of billings	41,778	27,493
Deferred income taxes and other current assets	58,660	56,930
Total current assets	1,196,322	1,063,477
Property and equipment	216,016	210,206
Less accumulated depreciation and amortization	108,712	101,155
Property and equipment, net	107,304	109,051
Goodwill	906	906
Non-current term deposits with banks	78	105
Deferred income taxes and other non-current assets	66,613	50,476
TOTAL ASSETS	1,371,223	1,224,015
Current liabilities:
Accounts payable	12,171	9,323
Accrued payroll and related costs	55,216	60,765
Income taxes payable	32,004	23,781
Accrued liabilities	28,625	24,250
Deferred revenue	2,834	3,266
Loans and borrowings	132,223	8,852
Total current liabilities	263,073	130,237
Other non-current liabilities	16,854	16,198
Non-current loans and borrowings		129,750
TOTAL LIABILITIES	$ 279,927	$ 276,185
Commitments and contingencies (See Note 15)
SHAREHOLDERS' EQUITY
Total shareholders' equity	$ 1,091,296	$ 947,830
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 1,371,223	$ 1,224,015