| Jun'19 | Mar'19 | Dec'18 | Sep'18 | Jun'18 | Mar'18 | Dec'17 | Sep'17 | Jun'17 | Mar'17 | Dec'16 | Sep'16 | Jun'16 | Mar'16 | Dec'15 | Sep'15 | Jun'15 | Mar'15 | Dec'14 | Sep'14 | Jun'14 | Mar'14 | Dec'13 | Sep'13 | Jun'13 | Mar'13 | Dec'12 | Sep'12 | Jun'12 | Mar'12 | Dec'11 | Sep'11 | Jun'11 | Mar'11 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Operating activities: | |||||||||||||||||||||||||||||||||
Net loss | |||||||||||||||||||||||||||||||||
-42,560 | -29,420 | -13,330 | -22,393 | -10,950 | -25,008 | -97,542 | -10,232 | -6,840 | -19,215 | 51,775 | -23,021 | -13,126 | -5,013 | 20,295 | 10,855 | 5,781 | -9,394 | 74,638 | 7,371 | -6,748 | -12,938 | 51,008 | -11,025 | -151 | -7,609 | 14,006 | -5,151 | 147,422 | 4,964 | 31,004 | -12,232 | -2,958 | -1,485 |
Adjustments to reconcile net loss to net cash used in operating activities: | |||||||||||||||||||||||||||||||||
Depreciation and amortization | |||||||||||||||||||||||||||||||||
3,715 | 3,893 | 3,907 | 3,889 | 3,991 | 4,278 | 4,626 | 4,241 | 4,113 | 3,780 | 3,621 | 3,562 | 3,389 | 4,112 | 4,119 | 4,487 | 4,440 | 3,971 | 4,092 | 4,030 | 4,292 | 3,910 | 3,907 | 3,429 | 3,477 | 3,429 | 2,589 | 2,016 | 2,063 | 1,984 | 2,231 | 2,091 | 2,115 | 2,164 |
Accretion and amortization on available for sale investments | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | -1,796 | 0 | 0 | - | - | - | - | - | - | - | - |
Loss on disposal of fixed assets | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | -42 | -2 | -1 | -118 | 0 | 20 | -30 | -354 | -8 | -26 | -115 |
Share-based compensation expense | |||||||||||||||||||||||||||||||||
4,101 | 3,666 | 3,499 | 3,514 | 3,192 | 2,942 | 3,206 | 2,585 | 2,307 | 2,751 | 2,765 | 2,739 | 2,795 | 2,852 | 2,716 | 2,710 | 2,754 | 3,173 | 2,811 | 2,153 | 2,878 | 2,522 | 2,118 | 1,835 | 1,560 | 1,726 | 1,731 | 1,797 | 1,242 | 1,193 | 933 | 589 | 985 | 1,121 |
Deferred income taxes | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | -102,887 | 6,608 | 3,712 | 11,099 | 12,416 | -4,911 | -1,204 | -4,440 | 8,383 | 5,856 | 1,766 | -3,902 | -39,156 | 3,716 | -7,967 | -9,797 | 10,975 | -9,878 | -10,406 | -3,866 | 444 | -294 | -48 | 2,918 | -14,514 | 55 | 56 | 7 |
Inventory write-down | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 372 | 545 | 0 | 0 | 0 | 819 | 1,510 | - | - | - | - |
Other | |||||||||||||||||||||||||||||||||
2,528 | -3,105 | -1,786 | -616 | 129 | 255 | -96 | -104 | -629 | -8 | -2,556 | 104 | 533 | -931 | -1,365 | -430 | -1,119 | 969 | -1,950 | -696 | -874 | -639 | - | - | - | - | - | - | - | - | - | - | - | - |
Cash provided (used) due to changes in operating assets and liabilities: | |||||||||||||||||||||||||||||||||
Accounts and other receivables | |||||||||||||||||||||||||||||||||
10,706 | -22,113 | 13,625 | -38,099 | 18,839 | -65,323 | 98,899 | -13,080 | 19,513 | -143,992 | 90,306 | 54,359 | -2,858 | -63,411 | -17,285 | 8,995 | 52,966 | -81,341 | 120,030 | -32,409 | 19,049 | -124,120 | 137,955 | 20,122 | -33,545 | 45,221 | -10,495 | -79,483 | 37,722 | -8,488 | 46,154 | 5,243 | -14,418 | -71,159 |
Long-term investment in sales-type lease, net | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | -3,064 | -2,488 | -2,534 | -2,043 | -2,663 | -2,313 | 24,661 | -2,461 | -3,774 | -2,628 | -2,579 | -2,529 | -1,763 | 34,652 | 0 | 0 | - | - | - | - | - | - | - | - | - | - | - | - |
Inventory | |||||||||||||||||||||||||||||||||
5,811 | 3,750 | -58,122 | -5,369 | -28,699 | -4,056 | -9,933 | 39,149 | 42,628 | 25,844 | -148,965 | 49,303 | 73,375 | 10,944 | -114,036 | 9,922 | 14,205 | 68,617 | -52,318 | 7,257 | 75,081 | 24,127 | -110,230 | 81,124 | 49,503 | -9,617 | -86,182 | 41,309 | 12,137 | 25,732 | 4,161 | 47,277 | -3,944 | 3,456 |
Prepaid expenses and other assets | |||||||||||||||||||||||||||||||||
-2,001 | -5,428 | 1,771 | 5,540 | -1,285 | -4,771 | 7,245 | -1,140 | 3,294 | -4,093 | -5,490 | -542 | 5,645 | -1,878 | -3,297 | 3,560 | -1,092 | 4,801 | 3,944 | 2,020 | -2,203 | 5,588 | -223 | 1,831 | -138 | 1,200 | -2,699 | 511 | 1,991 | -1,566 | 1,942 | 1,816 | 205 | -1,688 |
Accounts payable | |||||||||||||||||||||||||||||||||
5,147 | -7,775 | 3,661 | 12,235 | -3,965 | -36,299 | 15,039 | -15,130 | 26,143 | -14,525 | -21,232 | -4,972 | 25,345 | 17,762 | -42,064 | -7,480 | 16,324 | 13,371 | 5,230 | -31,979 | 39,641 | 1,612 | -22,643 | -5,480 | 29,717 | -2,103 | -29,287 | 23,970 | -18,280 | 17,108 | -12,180 | 27,813 | 8,707 | -6,241 |
Accrued payroll and related expenses and other liabilities | |||||||||||||||||||||||||||||||||
9,037 | -14,440 | 11,157 | -2,266 | 6,278 | -2,501 | 11,554 | -894 | 2,969 | -6,057 | 11,690 | -410 | -1,811 | -30,542 | 20,735 | 24,330 | -6,175 | -15,049 | 19,986 | 5,921 | -10,042 | -21,102 | 25,420 | 354 | -1,854 | -15,498 | 15,166 | -15,043 | 9,880 | 5,199 | 2,101 | 1,843 | -2,775 | -10,662 |
Customer contract liabilities | |||||||||||||||||||||||||||||||||
-12,994 | -3,402 | 5,272 | -2,266 | -8,727 | -18,322 | 18,714 | -24,228 | 9,028 | -10,005 | -45,505 | 54,981 | -8,177 | -8,869 | -74,826 | 86,112 | -4,148 | 1,176 | 9,528 | -45,927 | 6,232 | 1,760 | 46,966 | 9,197 | -1,049 | -10,639 | -34,339 | 15,974 | 15,680 | 38,596 | 5,061 | -7,133 | -14,139 | 10,233 |
Other non-current liabilities | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3,944 | -54 | -365 | 338 | 113 | -62 | 103 | -197 | -584 | 515 | 195 |
Net cash used in operating activities | |||||||||||||||||||||||||||||||||
-50,598 | -20,582 | 61,429 | 40,601 | 835 | -1,015 | -34,657 | -80,342 | -28,264 | 69,922 | 81,176 | -72,943 | -94,145 | 33,599 | 79,115 | 107,451 | -41,639 | 2,829 | 9,186 | -65,539 | -62,767 | 61,011 | 86,902 | -108,491 | 5,967 | -71,728 | 70,142 | 61,045 | -32,222 | 57,927 | -37,464 | -41,886 | 10,689 | 64,838 |
Investing activities: | |||||||||||||||||||||||||||||||||
Sales/maturities of available-for-sale investments | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | 650 | 8,670 | 16,650 | 5,020 | 0 | 7,750 | 0 | 8,479 | 25,283 | 14,325 | 5,000 | 9,000 | 69,597 | 69,680 | 0 | 0 | - | - | - | - | - | - | - | - |
Purchases of available-for-sale investments | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | 0 | 0 | 10,024 | 84,878 | 0 | 0 | 1,197 | 14,962 | 0 | 5,000 | 5,294 | 4,697 | 0 | 1 | 3,331 | 52,732 | 0 | 51,179 | 19,045 | 14,938 | 19,363 | 50,855 | 0 | 0 | - | - | - | - |
Cash received in strategic transaction | |||||||||||||||||||||||||||||||||
0 | 0 | 0 | 0 | 0 | 1,584 | 0 | 8,000 | 0 | 0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Decrease in restricted cash | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | - | -28 | -26 | -1,616 | 1,655 | -15,100 | 0 | 0 | -65 | -18,176 | 1,915 | 19,432 | 13,768 | 0 | 0 | 0 | -3,500 | 0 | 0 | -276 | 0 | -2 | -135 | 0 |
Purchases of property and equipment | |||||||||||||||||||||||||||||||||
4,293 | 3,659 | 1,452 | 538 | 1,087 | 2,188 | 1,820 | 2,059 | 3,299 | 10,289 | 3,695 | 1,424 | 1,433 | 951 | 2,401 | 1,090 | 2,127 | 1,849 | 7,032 | 3,689 | 2,971 | 3,501 | 7,014 | 1,700 | 2,554 | 1,868 | 6,270 | 2,258 | 1,557 | 758 | 1,168 | 1,472 | 1,300 | 976 |
Net cash provided by (used in) investing activities | |||||||||||||||||||||||||||||||||
-4,293 | -3,659 | -1,452 | -109 | 5,913 | -604 | 19,083 | 62,032 | 1,677 | -95,167 | -4,715 | 7,274 | 14,046 | -9,277 | -4,056 | 16,760 | -7,421 | 1,933 | 18,316 | 28,811 | -3,217 | -66,665 | 48,815 | 16,801 | -21,599 | -16,806 | -46,379 | -53,113 | 137,668 | -482 | -1,168 | -1,470 | -1,165 | -976 |
Financing activities: | |||||||||||||||||||||||||||||||||
Proceeds from issuance of common stock through employee stock purchase plan | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | 0 | 0 | 184 | 181 | 173 | 182 | 172 | 191 | 175 | 184 | 183 | 169 | 173 | 133 | 136 | 169 | 130 | 125 | 152 | 110 | 116 | 85 | 89 | 107 | 90 | 96 | 84 | 102 |
Purchase of employee restricted shares to fund related statutory tax withholding | |||||||||||||||||||||||||||||||||
2,886 | 141 | 126 | 365 | 2,411 | 158 | 170 | 355 | 1,352 | 162 | 95 | 2,038 | 1,166 | 80 | 222 | 3,285 | 732 | 134 | -2 | 1,748 | 1,568 | 453 | 13 | 2,039 | 1,379 | 340 | 0 | 0 | 0 | 0 | - | - | - | - |
Proceeds from exercises of stock options | |||||||||||||||||||||||||||||||||
740 | 829 | 582 | 9 | 254 | 1,538 | 649 | 603 | 14 | 76 | 23 | 237 | 370 | 1,491 | 1,303 | 75 | 549 | 362 | 771 | 1,135 | 194 | 986 | 129 | 1,003 | 656 | 1,373 | 876 | 661 | 5,234 | 659 | 536 | 2 | 93 | 459 |
Net cash used in financing activities | |||||||||||||||||||||||||||||||||
-2,146 | 688 | 456 | -356 | -2,157 | 1,380 | 479 | 248 | -1,154 | 95 | 101 | -1,619 | -624 | 1,602 | 1,256 | -3,026 | 0 | 397 | 946 | -480 | -1,238 | 702 | 246 | -911 | -571 | 1,143 | 992 | 746 | 5,323 | 766 | 626 | 98 | 177 | 561 |
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash | |||||||||||||||||||||||||||||||||
-243 | 221 | 1,150 | -442 | -351 | 166 | 599 | -129 | 371 | 910 | 273 | -981 | -562 | 1,446 | 256 | 729 | -1,396 | 839 | 1,212 | -331 | 43 | 10 | 51 | 74 | -106 | -219 | 59 | 114 | -111 | 179 | 152 | -304 | 111 | 211 |
Net increase (decrease) in cash, cash equivalents and restricted cash | |||||||||||||||||||||||||||||||||
-57,280 | -23,332 | 61,583 | 39,694 | 4,240 | -73 | -14,496 | -18,191 | -27,370 | -24,240 | 76,835 | -68,269 | -81,285 | 27,370 | 76,571 | 121,914 | -50,456 | 5,998 | 29,660 | -37,539 | -67,179 | -4,942 | 136,014 | -92,527 | -16,309 | -87,610 | 24,814 | 8,792 | 110,658 | 58,390 | -37,854 | -43,562 | 9,812 | 64,634 |
Supplemental disclosure of cash flow information: | |||||||||||||||||||||||||||||||||
Cash paid for interest | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0 | 0 | 0 | 5 | 0 | 2 | 1 | 0 | 20 | 22 | -50 | 98 | - | - | - | - |
Cash paid for income taxes | |||||||||||||||||||||||||||||||||
600 | -292 | 216 | 340 | 100 | 301 | -272 | 212 | 361 | 629 | 348 | 370 | 888 | 835 | 1,370 | 1,049 | 810 | 661 | 371 | 433 | 899 | 1,232 | -96 | 146 | 879 | 1,682 | 199 | 1,806 | 686 | 113 | 31 | 21 | 40 | 1,403 |
Non-cash investing and financing activities: | |||||||||||||||||||||||||||||||||
Inventory transfers to fixed assets and service spares | |||||||||||||||||||||||||||||||||
857 | 404 | 1,338 | 1,069 | 3,890 | 1,613 | 1,181 | 361 | 396 | 491 | 1,782 | 531 | 640 | 2,339 | 2,178 | 1,237 | 2,679 | 2,083 | 1,493 | 109 | 1,031 | 680 | 547 | 1,045 | 1,340 | 1,598 | 794 | 3,600 | 980 | 904 | 967 | 592 | 718 | 33 |