v3.5.0.1
Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 12 Months Ended
Apr. 30, 2016
Apr. 30, 2015
Apr. 30, 2014
Operating activities:      
Net loss applicable to common stockholders $ (25,339) $ (34,421) $ (63,166)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:      
Depreciation and amortization expense 14,062 12,453 15,068
Impairment of acquired intangible assets 0 0 2,500
Loss on disposal of discontinued operations, net of tax 0 1,537 9,192
Loss on sub-lease 546 0 0
Stock-based expense 14,761 12,201 13,827
Revaluation of contingent consideration 0 0 (3,270)
Bad debt expense 93 3,155 1,902
Excess tax benefit related to stock-based expense 0 (6) (216)
Amortization of deferred financing costs 235 98 0
Other non-cash expense 73 151 480
Changes in operating assets and liabilities:      
Accounts receivable 9,842 (13,589) (12,081)
Prepaid expenses and other current assets 187 (165) (1,551)
Other non-current assets (1,531) (177) (1,603)
Accounts payable 2,401 (297) (3,095)
Accrued expenses and other current liabilities (4,428) (1,165) (2,623)
Deferred revenue 2,286 6,258 2,040
Other liabilities, long-term 6,204 (2,599) (1,512)
Net cash provided by (used in) operating activities 19,392 (16,566) (44,108)
Investing activities:      
Acquisitions, net of cash acquired, and purchase of intangible asset 0 0 (9,616)
Proceeds from sale of discontinued operations 4,501 25,500 0
Purchases of property, equipment and capitalized internal-use software development costs (23,657) (11,438) (10,020)
Decrease in restricted cash 0 500 0
Purchases of short-term investments (61,834) (82,770) (60,092)
Proceeds from maturities of short-term investments 63,650 65,681 58,478
Proceeds from sale of short-term investments 0 5,012 31,098
Net cash provided by (used in) investing activities (17,340) 2,485 9,848
Financing activities:      
Proceeds from employee stock compensation plans 3,027 7,545 13,499
Proceeds from revolving line of credit 0 57,000 27,000
Payments on revolving line of credit (15,000) (27,000) 0
Deferred financing costs 0 (706) 0
Excess tax benefit related to stock-based expense 0 6 216
Net cash provided by (used in) financing activities (11,973) 36,845 40,715
Effect of exchange rate fluctuations on cash and cash equivalents (157) (657) 434
Net change in cash and cash equivalents (10,078) 22,107 6,889
Cash and cash equivalents at beginning of period 54,041 31,934 25,045
Cash and cash equivalents at end of period 43,963 54,041 31,934
Supplemental disclosure of other cash flow information:      
Cash paid for income taxes, net of refunds 1,071 902 1,493
Cash paid for interest 2,132 1,418 137
Supplemental disclosure of non-cash investing and financing activities:      
Purchase of fixed assets recorded in accounts payable 180 282 0
Asset retirement obligation costs incurred 100 532 0
Capitalized stock-based compensation $ 813 $ 601 $ 641