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Balance Sheet Information (Tables) | 6 Months Ended
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Jun. 30, 2014
Balance Sheet Information |
Schedule of available-for-sale securities and gains and losses in Accumulated Other Comprehensive Income (Loss) | Total available-for-sale securities and gains and losses in Accumulated Other Comprehensive Income (Loss) consist of the following (in thousands):
|  | June 30, 2014 |
|  | Amortized Cost |  | Gains in Accumulated Other Comprehensive Income |  | Losses in Accumulated Other Comprehensive Income |  | Estimated Fair Value |
U.S. treasuries |  | $ | 123,672 |  | $ | 12 |  | $ | — |  | $ | 123,684 |
Corporate debt |  | 65,176 |  | 111 |  | (2 | ) | 65,285 |
Government agency securities |  | 63,192 |  | 4 |  | — |  | 63,196 |
Total available-for-sale securities |  | $ | 252,040 |  | $ | 127 |  | $ | (2 | ) | $ | 252,165 |
|  | December 31, 2013 |
|  | Amortized Cost |  | Gains in Accumulated Other Comprehensive Income |  | Losses in Accumulated Other Comprehensive Income |  | Estimated Fair Value |
U.S. treasuries |  | $ | 130,956 |  | $ | 22 |  | $ | (1 | ) | $ | 130,977 |
Corporate debt |  | 77,582 |  | 55 |  | (36 | ) | 77,601 |
Government agency securities |  | 61,004 |  | 9 |  | — |  | 61,013 |
Commercial paper |  | 11,947 |  | — |  | — |  | 11,947 |
Total available-for-sale securities |  | $ | 281,489 |  | $ | 86 |  | $ | (37 | ) | $ | 281,538 |
Summary of fair value of short-term investments that have been in an unrealized loss position for less than 12 months | The table below shows the fair value of short-term investments that have been in an unrealized loss position for less than 12 months (in thousands):
|  | June 30, 2014 |
|  | Less than 12 months |
|  | Estimated Fair Value |  | Gross Unrealized Losses |
Corporate debt |  | $ | 3,350 |  | $ | (2 | )
Total |  | $ | 3,350 |  | $ | (2 | )
|  | December 31, 2013 |
|  | Less than 12 months |
|  | Estimated Fair Value |  | Gross Unrealized Losses |
Corporate debt |  | $ | 37,654 |  | $ | (36 | )
U. S. treasuries |  | 29,068 |  | (1 | )
Total |  | $ | 66,722 |  | $ | (37 | )
Schedule of contractual maturities of available-for-sale debt securities | Contractual maturities of available-for-sale debt securities are as follows (in thousands):
|  | June 30, 2014 |
|  | Estimated Fair Value |
Due in one year or less |  | $ | 212,814 |
Due in 1—2 years |  | 39,351 |
Total available-for-sale securities |  | $ | 252,165 |
Schedule of inventories | Inventories are stated at the lower of cost (principally first-in, first-out) or market. Inventories consist of (in thousands):
|  | June 30, |  | December 31, |
|  | 2014 |  | 2013 |
Materials |  | $ | 29,034 |  | $ | 34,301 |
Work in process |  | 12,736 |  | 12,900 |
Finished goods |  | 6,594 |  | 12,525 |
|  | $ | 48,364 |  | $ | 59,726 |
Schedule of changes in goodwill | Changes in our goodwill are as follows (in thousands):
Beginning balance as of December 31, 2013 |  | $ | 91,348 |
Purchase price adjustment (see Business Combinations) |  | 173 |
Ending balance as of June 30, 2014 |  | $ | 91,521 |
Schedule of changes in warranty liability | Changes in our warranty liability during the period are as follows (in thousands):
|  | June 30, |
|  | 2014 |  | 2013 |
Balance as of the beginning of period |  | $ | 5,662 |  | $ | 4,942 |
Warranties issued during the period |  | 1,653 |  | 1,806 |
Settlements made during the period |  | (1,963 | ) | (2,540 | )
Changes in estimate during the period |  | 279 |  | — |
Balance as of the end of period |  | $ | 5,631 |  | $ | 4,208 |
Schedule of the components of accumulated other comprehensive income | The components of accumulated other comprehensive income are (in thousands):
|  | Gross |  | Taxes |  | Net |
As of June 30, 2014 |  |  |  |  |  |  |  |  |  |
Translation adjustments |  | $ | 5,827 |  | $ | (392 | ) | $ | 5,435 |
Minimum pension liability |  | (1,160 | ) | 424 |  | (736 | )
Unrealized gain on available-for-sale securities |  | 125 |  | (18 | ) | 107 |
Accumulated other comprehensive income |  | $ | 4,792 |  | $ | 14 |  | $ | 4,806 |
|  | Gross |  | Taxes |  | Net |
As of December 31, 2013 |  |  |  |  |  |  |  |  |  |
Translation adjustments |  | $ | 5,718 |  | $ | (392 | ) | $ | 5,326 |
Minimum pension liability |  | (1,160 | ) | 424 |  | (736 | )
Unrealized gain on available-for-sale securities |  | 49 |  | (18 | ) | 31 |
Accumulated other comprehensive income |  | $ | 4,607 |  | $ | 14 |  | $ | 4,621 |
Summary of share activities impacting common stock and additional paid-in capital balances | Summary share activities impacting our common stock and additional paid-in capital balances are as follows (in thousands):
|  | For the Six Months Ended June 30, 2014 |
|  | Shares |
Restricted Stock |  |  |
Grants |  | 206 |
Gross Vesting |  | 168 |
Shares Withheld to Cover Taxes & Cancelled |  | (55 | )
Net Shares Vested |  | 113 |
Stock Options |  |  |
Exercised |  | 384 |

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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 2 -Paragraph 6 -Subparagraph a,b,c -Article 5 + Details
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