|
Consolidated Statements of Cash Flows (USD $)
In Thousands, unless otherwise specified
|
12 Months Ended |
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
| Cash flows from operating activities |
|
|
|
| Net income (loss) |
$ (7,682) |
$ 3,566 |
$ 5,761 |
| Adjustments to reconcile net income to net cash provided by operating activities |
|
|
|
| Depreciation and amortization |
7,704 |
6,100 |
4,403 |
| Amortization of premium on investments |
198 |
54 |
134 |
| Provision for bad debts |
116 |
100 |
85 |
| Provision for (benefit from) deferred income taxes |
926 |
(831) |
3,793 |
| Income tax benefit from the exercise of stock options |
(17) |
(6,635) |
(5,887) |
| Stock-based compensation |
19,714 |
14,792 |
8,925 |
| Loss on disposal of equipment |
|
12 |
|
| Changes in assets and liabilities: |
|
|
|
| Accounts receivable |
302 |
(4,471) |
(4,088) |
| Prepaid expenses and other current assets |
(2,986) |
(1,070) |
494 |
| Other assets |
(3,764) |
(1,308) |
(215) |
| Accounts payable |
(2,233) |
1,552 |
3,787 |
| Accrued liabilities |
3,457 |
5,854 |
(531) |
| Deferred revenue |
14,493 |
10,960 |
15,471 |
| Other long-term liabilities |
(208) |
(418) |
739 |
| Net cash provided by operating activities |
30,020 |
28,257 |
32,871 |
| Cash flows from investing activities |
|
|
|
| Purchases of marketable securities |
(90,376) |
(135,085) |
(150,066) |
| Proceeds from sale or disposal of marketable securities |
90,000 |
130,000 |
145,000 |
| Purchases of property and equipment |
(10,938) |
(5,277) |
(2,322) |
| Intangible asset additions |
(13,061) |
(1,049) |
(346) |
| Cash paid for acquisition, net of cash acquired |
|
(14,831) |
(10,000) |
| (Increase) decrease in restricted cash and deposits |
7 |
(3,558) |
(26) |
| Net cash used in investing activities |
(24,368) |
(29,800) |
(17,760) |
| Cash flows from financing activities |
|
|
|
| Proceeds from issuance of common stock upon option exercises |
3,798 |
2,682 |
6,207 |
| Income tax benefit from the exercise of stock options |
17 |
6,634 |
5,887 |
| Payment of contingent consideration |
(104) |
(89) |
|
| Common stock withheld to satisfy income tax withholdings for restricted stock unit vesting |
(1,834) |
|
|
| Purchase of treasury stock |
(30,525) |
|
|
| Net cash provided by (used in) financing activities |
(28,648) |
9,227 |
12,094 |
| Effect of exchange rate changes on cash and cash equivalents and restricted cash |
321 |
644 |
(881) |
| Net increase (decrease) in cash and cash equivalents |
(22,675) |
8,328 |
26,324 |
| Cash and cash equivalents, beginning of period |
111,932 |
103,604 |
77,280 |
| Cash and cash equivalents, end of period |
89,257 |
111,932 |
103,604 |
| Supplemental disclosure of cash flow information |
|
|
|
| Cash paid for interest |
2 |
|
1 |
| Cash paid for income taxes |
10,094 |
1,802 |
356 |
| Noncash investing and financing activities |
|
|
|
| Purchases of property and equipment included in accounts payable and accrued liabilities |
1,510 |
742 |
671 |
| Fair value of contingent consideration in connection with acquisition included in accrued liabilities and other long term liabilities |
|
$ 161 |
$ 212 |