XML 12 R5.htm IDEA: XBRL DOCUMENT v3.10.0.1
Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Cash flows from operating activities:    
Net income $ 149,966 $ 136,226
Adjustments to reconcile net income to net cash provided by operating activities:    
Loss on disposal of property, plant and equipment 2 348
Depreciation expense 23,779 20,387
Amortization of intangibles 10,165 8,456
Amortization of government grants (24) (21)
Interest on short term investments (712) (536)
Stock compensation expense 16,430 18,701
Amortization of gain on interest rate hedge (463) (462)
Amortization of financing costs 530 282
Deferred taxes (2,745) (581)
Changes in assets and liabilities:    
(Increase)/decrease in accounts receivable (26,685) 59,812
Increase in unbilled revenue (51,052) (55,081)
Increase in other receivables (5,082) (6,234)
Decrease/(increase) in prepayments and other current assets 9,777 (3,677)
Increase in other non-current assets (338) (737)
Increase/(decrease) in payments on account 2,616 (11,463)
Decrease in other current liabilities (38,547) 4,558
Decrease in other non-current liabilities (1,083) (4,442)
(Decrease)/increase in income taxes payable (3,622) 3,802
Decrease in accounts payable (3,241) (920)
Net cash provided by operating activities 79,671 168,418
Cash flows from investing activities:    
Purchase of property, plant and equipment (17,219) (15,179)
Purchase of subsidiary undertakings (1,645) 0
Purchase of short term investments (55,608) (24,919)
Sale of short term investments 49,708 6,950
Net cash used in investing activities (24,764) (33,148)
Cash flows from financing activities:    
Financing costs (823)  
Proceeds from exercise of equity compensation 10,334 5,914
Share issue costs (9) (10)
Repurchase of ordinary shares (54,172) (108,106)
Share repurchase costs (44) (86)
Net cash used in financing activities (44,714) (102,288)
Effect of exchange rate movements on cash (3,833) 2,731
Net increase in cash and cash equivalents 6,360 35,713
Cash and cash equivalents at beginning of period 282,859 192,541
Cash and cash equivalents at end of period $ 289,219 $ 228,254