Cash, Cash Equivalents and Investments (Tables)
|
6 Months Ended |
Jun. 30, 2016 |
|---|
| Cash and Cash Equivalents [Abstract] |
|
| Schedule of cash, cash equivalents and investments |
Cash, cash equivalents and investments consisted of the following:
|
|
|
|
|
|
|
|
|
|
As of
December 31,
2015 |
|
As of
June 30,
2016 |
|
(in thousands) |
Cash and cash equivalents |
|
|
|
|
|
Cash |
$ |
104,361 |
|
|
$ |
67,756 |
|
Money market funds |
180,021 |
|
|
112,607 |
|
Commercial paper |
31,089 |
|
|
47,684 |
|
Corporate debt securities |
2,000 |
|
|
10,320 |
|
U.S. government and government agency debt securities |
17,196 |
|
|
— |
|
Total cash and cash equivalents |
$ |
334,667 |
|
|
$ |
238,367 |
|
Short-term investments |
|
|
|
|
|
Commercial paper |
$ |
4,792 |
|
|
$ |
3,998 |
|
Corporate debt securities |
31,052 |
|
|
50,802 |
|
Total short-term investments |
$ |
35,844 |
|
|
$ |
54,800 |
|
Long-term investments |
|
|
|
|
|
Corporate debt securities |
$ |
46,369 |
|
|
$ |
18,153 |
|
Total long-term investments |
$ |
46,369 |
|
|
$ |
18,153 |
|
Cash, cash equivalents and investments |
$ |
416,880 |
|
|
$ |
311,320 |
|
|
| Summary of available-for-sale securities' adjusted cost, gross unrealized gains, gross unrealized losses and fair value by significant investment category |
The following tables summarize our available-for-sale securities’ adjusted cost, gross unrealized gains, gross unrealized losses and fair value by significant investment category as of December 31, 2015 and June 30, 2016.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
As of December 31, 2015 |
|
Adjusted
Cost
|
|
Unrealized
Gains
|
|
Unrealized
Losses
|
|
Fair
Value
|
|
(in thousands) |
Money market funds |
$ |
180,021 |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
180,021 |
|
Commercial paper |
35,881 |
|
|
— |
|
|
— |
|
|
35,881 |
|
Corporate debt securities |
79,760 |
|
|
8 |
|
|
(347 |
) |
|
79,421 |
|
U.S. government and government agency debt securities |
17,198 |
|
|
— |
|
|
(2 |
) |
|
17,196 |
|
Total cash equivalents and marketable securities |
$ |
312,860 |
|
|
$ |
8 |
|
|
$ |
(349 |
) |
|
$ |
312,519 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
As of June 30, 2016 |
|
Adjusted
Cost
|
|
Unrealized
Gains
|
|
Unrealized
Losses
|
|
Fair
Value
|
|
(in thousands) |
Money market funds |
$ |
112,607 |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
112,607 |
|
Commercial paper |
51,682 |
|
|
— |
|
|
— |
|
|
51,682 |
|
Corporate debt securities |
79,223 |
|
|
69 |
|
|
(17 |
) |
|
79,275 |
|
Total cash equivalents and marketable securities |
$ |
243,512 |
|
|
$ |
69 |
|
|
$ |
(17 |
) |
|
$ |
243,564 |
|
|
| Schedule of available-for-sale investments by contractual maturity date |
The following table presents available-for-sale investments by contractual maturity date as of December 31, 2015 and June 30, 2016.
|
|
|
|
|
|
|
|
|
|
As of December 31, 2015 |
|
Adjusted
Cost
|
|
Fair Value |
|
(in thousands) |
Due in one year or less |
$ |
266,205 |
|
|
$ |
266,150 |
|
Due after one year through three years |
46,655 |
|
|
46,369 |
|
Total |
$ |
312,860 |
|
|
$ |
312,519 |
|
|
|
|
|
|
|
|
|
|
|
As of June 30, 2016 |
|
Adjusted
Cost
|
|
Fair Value |
|
(in thousands) |
Due in one year or less |
$ |
225,395 |
|
|
$ |
225,411 |
|
Due after one year through three years |
18,117 |
|
|
18,153 |
|
Total |
$ |
243,512 |
|
|
$ |
243,564 |
|
|
| Summary of available-for-sale securities' fair value and gross unrealized losses |
The following tables summarize our available-for-sale securities’ fair value and gross unrealized losses aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position as of December 31, 2015 and June 30, 2016.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
As of December 31, 2015 |
|
Twelve Months or Less |
|
More than Twelve Months |
|
Total |
|
Fair
Value |
|
Gross Unrealized Losses |
|
Fair
Value |
|
Gross Unrealized Losses |
|
Fair
Value |
|
Gross Unrealized Losses |
|
(in thousands) |
Corporate debt securities |
$ |
64,804 |
|
|
$ |
(293 |
) |
|
$ |
8,531 |
|
|
$ |
(54 |
) |
|
$ |
73,335 |
|
|
$ |
(347 |
) |
U.S. government and government agency debt securities |
16,241 |
|
|
(2 |
) |
|
— |
|
|
— |
|
|
16,241 |
|
|
(2 |
) |
Total |
$ |
81,045 |
|
|
$ |
(295 |
) |
|
$ |
8,531 |
|
|
$ |
(54 |
) |
|
$ |
89,576 |
|
|
$ |
(349 |
) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
As of June 30, 2016 |
|
Twelve Months or Less |
|
More than Twelve Months |
|
Total |
|
Fair
Value |
|
Gross Unrealized Losses |
|
Fair
Value |
|
Gross Unrealized Losses |
|
Fair
Value |
|
Gross Unrealized Losses |
|
(in thousands) |
Corporate debt securities |
$ |
17,796 |
|
|
$ |
(7 |
) |
|
$ |
9,763 |
|
|
$ |
(10 |
) |
|
$ |
27,559 |
|
|
$ |
(17 |
) |
Total |
$ |
17,796 |
|
|
$ |
(7 |
) |
|
$ |
9,763 |
|
|
$ |
(10 |
) |
|
$ |
27,559 |
|
|
$ |
(17 |
) |
|