| 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 | |||||||||||||||||||||||||||||||||
-107,703 | -76,093 | -71,681 | -155,893 | -143,732 | -139,622 | -133,829 | 15,488 | 2,699 | -3,587 | 10,615 | -20,865 | 13,011 | 31,918 | 27,537 | 81,880 | 78,396 | 65,867 | 62,323 | 38,693 | 20,297 | 26,894 | 32,223 | -4,779 | 1,095 | 148,668 | 161,241 | 178,239 | 171,158 | 20,778 | 14,329 | 0 | 0 | 0 |
Adjustments to reconcile net loss to net cash used in operating activities: | |||||||||||||||||||||||||||||||||
Depreciation and amortization | |||||||||||||||||||||||||||||||||
15,404 | 15,680 | 16,065 | 16,784 | 17,136 | 17,258 | 16,760 | 15,755 | 15,076 | 14,352 | 14,684 | 15,182 | 16,107 | 17,158 | 17,017 | 16,990 | 16,533 | 16,385 | 16,324 | 16,139 | 15,538 | 14,723 | 14,242 | 12,924 | 11,511 | 10,097 | 8,652 | 8,294 | 8,369 | 8,421 | 8,601 | 0 | 0 | 0 |
Accretion and amortization on available for sale investments | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0 | 0 | 0 | - | - | - | - | - | - | - | - |
Loss on disposal of fixed assets | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | -163 | -121 | -99 | -128 | -364 | -372 | -418 | -503 | 0 | 0 | 0 |
Share-based compensation expense | |||||||||||||||||||||||||||||||||
14,780 | 13,871 | 13,147 | 12,854 | 11,925 | 11,040 | 10,849 | 10,408 | 10,562 | 11,050 | 11,151 | 11,102 | 11,073 | 11,032 | 11,353 | 11,448 | 10,891 | 11,015 | 10,364 | 9,671 | 9,353 | 8,035 | 7,239 | 6,852 | 6,814 | 6,496 | 5,963 | 5,165 | 3,957 | 3,700 | 3,628 | 0 | 0 | 0 |
Deferred income taxes | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | -81,468 | 33,835 | 22,316 | 17,400 | 1,861 | -2,172 | 8,595 | 11,565 | 12,103 | -35,436 | -37,576 | -47,309 | -53,204 | -3,073 | -16,667 | -19,106 | -13,175 | -23,706 | -14,122 | -3,764 | 3,020 | -11,938 | -11,589 | -11,485 | -14,396 | 0 | 0 | 0 |
Inventory write-down | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 917 | 545 | 819 | 2,329 | 0 | 0 | 0 | - | - | - | - |
Other | |||||||||||||||||||||||||||||||||
-2,979 | -5,378 | -2,018 | -328 | 184 | -574 | -837 | -3,297 | -3,089 | -1,927 | -2,850 | -1,659 | -2,193 | -3,845 | -1,945 | -2,530 | -2,796 | -2,551 | -4,159 | 0 | 0 | 0 | - | - | - | - | - | - | - | - | - | - | - | - |
Cash provided (used) due to changes in operating assets and liabilities: | |||||||||||||||||||||||||||||||||
Accounts and other receivables | |||||||||||||||||||||||||||||||||
-35,881 | -27,748 | -70,958 | 14,316 | 39,335 | 40,009 | -38,660 | -47,253 | 20,186 | -2,185 | 78,396 | -29,195 | -74,559 | -18,735 | -36,665 | 100,650 | 59,246 | 25,329 | -17,450 | 475 | 53,006 | 412 | 169,753 | 21,303 | -78,302 | -7,035 | -60,744 | -4,095 | 80,631 | 28,491 | -34,180 | 0 | 0 | 0 |
Long-term investment in sales-type lease, net | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | -10,129 | -9,728 | -9,553 | 17,642 | 17,224 | 16,113 | 15,798 | -11,442 | -11,510 | -9,499 | 27,781 | 30,360 | 32,889 | 0 | 0 | 0 | - | - | - | - | - | - | - | - | - | - | - | - |
Inventory | |||||||||||||||||||||||||||||||||
-53,930 | -88,440 | -96,246 | -48,057 | -3,539 | 67,788 | 97,688 | -41,344 | -31,190 | -443 | -15,343 | 19,586 | -19,795 | -78,965 | -21,292 | 40,426 | 37,761 | 98,637 | 54,147 | -3,765 | 70,102 | 44,524 | 10,780 | 34,828 | -4,987 | -42,353 | -7,004 | 83,339 | 89,307 | 73,226 | 50,950 | 0 | 0 | 0 |
Prepaid expenses and other assets | |||||||||||||||||||||||||||||||||
-118 | 598 | 1,255 | 6,729 | 49 | 4,628 | 5,306 | -7,429 | -6,831 | -4,480 | -2,265 | -72 | 4,030 | -2,707 | 3,972 | 11,213 | 9,673 | 8,562 | 9,349 | 5,182 | 4,993 | 7,058 | 2,670 | 194 | -1,126 | 1,003 | -1,763 | 2,878 | 4,183 | 2,397 | 2,275 | 0 | 0 | 0 |
Accounts payable | |||||||||||||||||||||||||||||||||
13,268 | 4,156 | -24,368 | -12,990 | -40,355 | -10,247 | 11,527 | -24,744 | -14,586 | -15,384 | 16,903 | -3,929 | -6,437 | -15,458 | -19,849 | 27,445 | 2,946 | 26,263 | 14,504 | -13,369 | 13,130 | 3,206 | -509 | -7,153 | 22,297 | -25,700 | -6,489 | 10,618 | 14,461 | 41,448 | 18,099 | 0 | 0 | 0 |
Accrued payroll and related expenses and other liabilities | |||||||||||||||||||||||||||||||||
3,488 | 729 | 12,668 | 13,065 | 14,437 | 11,128 | 7,572 | 7,708 | 8,192 | 3,412 | -21,073 | -12,028 | 12,712 | 8,348 | 23,841 | 23,092 | 4,683 | 816 | -5,237 | 197 | -5,370 | 2,818 | 8,422 | -1,832 | -17,229 | -5,495 | 15,202 | 2,137 | 19,023 | 6,368 | -9,493 | 0 | 0 | 0 |
Customer contract liabilities | |||||||||||||||||||||||||||||||||
-13,390 | -9,123 | -24,043 | -10,601 | -32,563 | -14,808 | -6,491 | -70,710 | 8,499 | -8,706 | -7,570 | -36,891 | -5,760 | -1,731 | 8,314 | 92,668 | -39,371 | -28,991 | -28,407 | 9,031 | 64,155 | 56,874 | 44,475 | -36,830 | -30,053 | -13,324 | 35,911 | 75,311 | 52,204 | 22,385 | -5,978 | 0 | 0 | 0 |
Other non-current liabilities | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3,863 | 32 | 24 | 492 | -43 | -740 | -163 | -71 | 0 | 0 | 0 |
Net cash used in operating activities | |||||||||||||||||||||||||||||||||
30,850 | 82,283 | 101,850 | 5,764 | -115,179 | -144,278 | -73,341 | 42,492 | 49,891 | -15,990 | -52,313 | -54,374 | 126,020 | 178,526 | 147,756 | 77,827 | -95,163 | -116,291 | -58,109 | 19,607 | -23,345 | 45,389 | -87,350 | -104,110 | 65,426 | 27,237 | 156,892 | 49,286 | -53,645 | -10,734 | -3,823 | 0 | 0 | 0 |
Investing activities: | |||||||||||||||||||||||||||||||||
Sales/maturities of available-for-sale investments | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | 30,990 | 30,340 | 29,420 | 12,770 | 16,229 | 41,512 | 48,087 | 53,087 | 53,608 | 97,922 | 153,277 | 148,277 | 139,277 | 0 | 0 | 0 | - | - | - | - | - | - | - | - |
Purchases of available-for-sale investments | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | 94,902 | 94,902 | 94,902 | 86,075 | 16,159 | 16,159 | 21,159 | 25,256 | 14,991 | 14,991 | 9,992 | 8,029 | 56,064 | 56,064 | 107,242 | 122,956 | 85,162 | 104,525 | 104,201 | 85,156 | 70,218 | 0 | 0 | 0 | - | - | - | - |
Cash received in strategic transaction | |||||||||||||||||||||||||||||||||
0 | 0 | 1,584 | 1,584 | 9,584 | 9,584 | 8,000 | 0 | 0 | 0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Decrease in restricted cash | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | - | -15 | -15,087 | -15,061 | -13,445 | -15,165 | -18,241 | -16,326 | 3,106 | 16,939 | 35,115 | 33,200 | 13,768 | -3,500 | -3,500 | -3,500 | -3,776 | -276 | -278 | -413 | -137 | 0 | 0 | 0 |
Purchases of property and equipment | |||||||||||||||||||||||||||||||||
9,942 | 6,736 | 5,265 | 5,633 | 7,154 | 9,366 | 17,467 | 19,342 | 18,707 | 16,841 | 7,503 | 6,209 | 5,875 | 6,569 | 7,467 | 12,098 | 14,697 | 15,541 | 17,193 | 17,175 | 15,186 | 14,769 | 13,136 | 12,392 | 12,950 | 11,953 | 10,843 | 5,741 | 4,955 | 4,698 | 4,916 | 0 | 0 | 0 |
Net cash provided by (used in) investing activities | |||||||||||||||||||||||||||||||||
-9,513 | 693 | 3,748 | 24,283 | 86,424 | 82,188 | -12,375 | -36,173 | -90,931 | -78,562 | 7,328 | 7,987 | 17,473 | -3,994 | 7,216 | 29,588 | 41,639 | 45,843 | -22,755 | 7,744 | -4,266 | -22,648 | 27,211 | -67,983 | -137,897 | 21,370 | 37,694 | 82,905 | 134,548 | -4,285 | -4,779 | 0 | 0 | 0 |
Financing activities: | |||||||||||||||||||||||||||||||||
Proceeds from issuance of common stock through employee stock purchase plan | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | 365 | 538 | 720 | 708 | 718 | 720 | 722 | 733 | 711 | 709 | 658 | 611 | 611 | 568 | 560 | 576 | 517 | 503 | 463 | 400 | 397 | 371 | 382 | 377 | 372 | 0 | 0 | 0 |
Purchase of employee restricted shares to fund related statutory tax withholding | |||||||||||||||||||||||||||||||||
3,518 | 3,043 | 3,060 | 3,104 | 3,094 | 2,035 | 2,039 | 1,964 | 3,647 | 3,461 | 3,379 | 3,506 | 4,753 | 4,319 | 4,373 | 4,149 | 2,612 | 3,448 | 3,767 | 3,782 | 4,073 | 3,884 | 3,771 | 3,758 | 1,719 | 340 | 0 | 0 | 0 | 0 | - | - | - | - |
Proceeds from exercises of stock options | |||||||||||||||||||||||||||||||||
2,160 | 1,674 | 2,383 | 2,450 | 3,044 | 2,804 | 1,342 | 716 | 350 | 706 | 2,121 | 3,401 | 3,239 | 3,418 | 2,289 | 1,757 | 2,817 | 2,462 | 3,086 | 2,444 | 2,312 | 2,774 | 3,161 | 3,908 | 3,566 | 8,144 | 7,430 | 7,090 | 6,431 | 1,290 | 1,090 | 0 | 0 | 0 |
Net cash used in financing activities | |||||||||||||||||||||||||||||||||
-1,358 | -1,369 | -677 | -654 | -50 | 953 | -332 | -710 | -2,577 | -2,047 | -540 | 615 | -792 | -168 | -1,373 | -1,683 | 863 | -375 | -70 | -770 | -1,201 | -534 | -93 | 653 | 2,310 | 8,204 | 7,827 | 7,461 | 6,813 | 1,667 | 1,462 | 0 | 0 | 0 |
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash | |||||||||||||||||||||||||||||||||
686 | 578 | 523 | -28 | 285 | 1,007 | 1,751 | 1,425 | 573 | -360 | 176 | 159 | 1,869 | 1,035 | 428 | 1,384 | 324 | 1,763 | 934 | -227 | 178 | 29 | -200 | -192 | -152 | -157 | 241 | 334 | -84 | 138 | 170 | 0 | 0 | 0 |
Net increase (decrease) in cash, cash equivalents and restricted cash | |||||||||||||||||||||||||||||||||
20,665 | 82,185 | 105,444 | 29,365 | -28,520 | -60,130 | -84,297 | 7,034 | -43,044 | -96,959 | -45,349 | -45,613 | 144,570 | 175,399 | 154,027 | 107,116 | -52,337 | -69,060 | -80,000 | 26,354 | -28,634 | 22,236 | -60,432 | -171,632 | -70,313 | 56,654 | 202,654 | 139,986 | 87,632 | -13,214 | -6,970 | 0 | 0 | 0 |
Supplemental disclosure of cash flow information: | |||||||||||||||||||||||||||||||||
Cash paid for interest | |||||||||||||||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 5 | 5 | 7 | 8 | 3 | 23 | 43 | -8 | 90 | 0 | 0 | 0 | - | - | - | - |
Cash paid for income taxes | |||||||||||||||||||||||||||||||||
864 | 364 | 957 | 469 | 341 | 602 | 930 | 1,550 | 1,708 | 2,235 | 2,441 | 3,463 | 4,142 | 4,064 | 3,890 | 2,891 | 2,275 | 2,364 | 2,935 | 2,468 | 2,181 | 2,161 | 2,611 | 2,906 | 4,566 | 4,373 | 2,804 | 2,636 | 851 | 205 | 1,495 | 0 | 0 | 0 |
Non-cash investing and financing activities: | |||||||||||||||||||||||||||||||||
Inventory transfers to fixed assets and service spares | |||||||||||||||||||||||||||||||||
3,668 | 6,701 | 7,910 | 7,753 | 7,045 | 3,551 | 2,429 | 3,030 | 3,200 | 3,444 | 5,292 | 5,688 | 6,394 | 8,433 | 8,177 | 7,492 | 6,364 | 4,716 | 3,313 | 2,367 | 3,303 | 3,612 | 4,530 | 4,777 | 7,332 | 6,972 | 6,278 | 6,451 | 3,443 | 3,181 | 2,310 | 0 | 0 | 0 |