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Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Cash flows from operating activities      
Net loss for the year $ (18,790) $ (22,311) $ (4,837)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:      
Amortization and depreciation 7,236 4,672 1,758
Stock-based compensation 7,805 3,792 1,446
Vesting of restricted shares 353 651 320
Loss on asset disposal 0 100 73
Unrealized foreign exchange loss 1,828 524 62
Changes in lease incentives 3,541 7,292 236
Change in deferred revenue 6,218 2,813 1,945
Changes in non-cash working capital items 7,565 1,666 393
Net cash provided by (used in) operating activities 15,756 (801) 1,396
Cash flows from investing activities      
Purchase of marketable securities (111,154) (20,131) 0
Maturity of marketable securities 48,350 2,375 0
Acquisitions of property and equipment (16,525) (20,573) (3,462)
Proceeds from disposal of property and equipment 0 90 0
Acquisitions of intangible assets (4,511) (2,127) (1,042)
Acquisition of business, net of cash acquired 0 0 (828)
Net cash used in investing activities (83,840) (40,366) (5,332)
Cash flows from financing activities      
Proceeds from initial public offering, net of issuance costs 136,251 0 0
Issuance of Series C convertible preferred shares, net of issuance costs 0 0 69,758
Proceeds from the exercise of stock options 1,604 140 295
Net cash provided by financing activities 137,855 140 70,053
Effect of foreign exchange on cash and cash equivalents (1,654) (549) (243)
Net increase (decrease) in cash and cash equivalents 68,117 (41,576) 65,874
Cash and cash equivalents – Beginning of Year 41,953 83,529 17,655
Cash and cash equivalents – End of Year $ 110,070 $ 41,953 $ 83,529