Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 89,414	$ 213,155
Short-term investments	147,915	13,491
Restricted cash	1,898	3,846
Accounts receivable, net	123,798	113,067
Prepaid expenses	9,454	7,855
Advance income tax, net	7,337	6,242
Other current assets	18,784	21,168
Total current assets	398,600	378,824
Property, plant and equipment, net	63,978	49,029
Restricted cash	3,692	3,393
Deferred taxes, net	13,959	14,799
Intangible assets, net	46,973	53,770
Goodwill	188,154	186,770
Other assets	32,075	19,943
Total assets	747,431	706,528
Current liabilities:
Accounts payable	11,661	3,288
Short-term borrowings	10,000	10,000
Deferred revenue	14,189	16,615
Accrued employee cost	39,135	50,832
Accrued expenses and other current liabilities	40,845	43,264
Current portion of capital lease obligations	203	232
Total current liabilities	116,033	124,231
Long term borrowings	35,000	35,000
Capital lease obligations, less current portion	310	300
Non-current liabilities	16,166	14,819
Total liabilities	167,509	174,350
Commitments and contingencies (See Note 21)
Preferred stock, $0.001 par value; 15,000,000 shares authorized, none issued	0	0
Stockholders’ equity:
Common stock, $0.001 par value; 100,000,000 shares authorized, 36,252,428 shares issued and 33,691,731 shares outstanding as of June 30, 2017 and 35,699,819 shares issued and 33,628,109 shares outstanding as of December 31, 2016	36	36
Additional paid-in capital	303,486	284,646
Retained earnings	415,342	382,722
Accumulated other comprehensive loss	(55,451)	(75,057)
Total including shares held in treasury	663,413	592,347
Less: 2,560,697 shares as of June 30, 2017 and 2,071,710 shares as of December 31, 2016, held in treasury, at cost	(83,694)	(60,362)
Stockholders' equity	579,719	531,985
Non-controlling interest	203	193
Total equity	579,922	532,178
Total liabilities and equity	$ 747,431	$ 706,528