v3.19.1
Condensed consolidated statements of cash flows (unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Apr. 30, 2019
Apr. 30, 2018
Cash flows from operating activities:    
Net income $ 41,822 $ 22,577
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 4,773 4,520
Unrealized (gains) losses on marketable equity securities and other (23,484) 140
Deferred taxes 7,542 1,989
Stock-based compensation 6,028 4,239
Changes in operating assets and liabilities:    
Accounts receivable (1,354) (1,420)
Other assets (1,694) (5,471)
Operating lease right-of-use assets 635  
Accounts payable (1,577) 87
Accrued compensation (8,480) (4,909)
Accrued liabilities and other current liabilities 1,769 881
Operating lease liabilities, non-current (627)  
Other long-term liabilities (17) 71
Net cash provided by operating activities 25,336 22,704
Cash flows from investing activities:    
Purchases of intangible member assets (1,262) 0
Purchases of marketable equity securities (53,845) (180)
Purchases of property and equipment (1,126) (1,121)
Purchases of software and capitalized software development costs (5,497) (2,097)
Net cash used in investing activities (61,730) (3,398)
Cash flows from financing activities:    
Proceeds from exercise of common stock options 4,229 10,167
Net cash provided by financing activities 4,229 10,167
Increase (decrease) in cash and cash equivalents (32,165) 29,473
Beginning cash and cash equivalents 361,475 199,472
Ending cash and cash equivalents 329,310 228,945
Supplemental cash flow data:    
Interest expense paid in cash 50 50
Income taxes paid in cash, net of refunds received (51) 39
Supplemental disclosures of non-cash investing and financing activities:    
Purchases of property and equipment included in accounts payable or accrued liabilities at period end 21 491
Exercise of common stock options receivable 141 797
Software    
Supplemental disclosures of non-cash investing and financing activities:    
Purchases of software and capitalized software development costs included in accounts payable or accrued liabilities at period end $ 158 $ 117