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Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Cash flows from operating activities    
Net loss for the year $ (124,842) $ (64,553)
Adjustments to reconcile net loss to net cash provided by operating activities:    
Amortization and depreciation 35,651 27,052
Stock-based compensation 158,456 95,720
Provision for uncollectible receivables related to merchant cash advances and loans receivable 15,912 5,922
Deferred income taxes (37,918) 0
Unrealized foreign exchange loss 3,181 1,272
Changes in operating assets and liabilities:    
Trade and other receivables (56,181) (32,649)
Merchant cash advances and loans receivable (74,211) (50,694)
Other current assets (12,401) (10,816)
Accounts payable and accrued liabilities 84,563 20,641
Income tax assets and liabilities 64,648 0
Deferred revenue 12,305 9,015
Lease assets and liabilities 1,452 8,414
Net cash provided by operating activities 70,615 9,324
Cash flows from investing activities    
Purchase of marketable securities (2,718,604) (2,447,955)
Maturity of marketable securities 2,477,038 1,698,264
Acquisitions of property and equipment (56,759) (27,950)
Acquisitions of intangible assets (5,638) (13,595)
Acquisition of businesses, net of cash acquired (265,512) (19,397)
Net cash used by investing activities (569,475) (810,633)
Cash flows from financing activities    
Proceeds from the exercise of stock options 48,337 30,494
Proceeds from public offering, net of issuance costs 688,014 1,041,688
Net cash provided by financing activities 736,351 1,072,182
Effect of foreign exchange on cash and cash equivalents 1,742 (1,867)
Net increase in cash and cash equivalents 239,233 269,006
Cash and cash equivalents – Beginning of Year 410,683 141,677
Cash and cash equivalents – End of Year 649,916 410,683
Supplemental cash flow information:    
Cash paid for amounts included in the measurement of lease liabilities included in cash flows from operating activities 15,611  
Lease liabilities arising from obtaining right-of-use assets 153,053  
Acquired property and equipment remaining unpaid 7,878 1,931
Acquired intangible assets remaining unpaid 0 322
Capitalized stock-based compensation $ 854 $ 1,970