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Investments and Fair Value Measurements (Tables) | 6 Months Ended
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Jun. 30, 2014
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Schedule of Held-to-maturity Investments | The following table summarizes the Company’s held-to-maturity investments:
|  | June 30, 2014 |  |  | December 31, 2013 |
Federal agency debt instruments |  | $ | 12,145 |  |  | $ | 11,748 |
Schedule of Unrealized Gains, Losses, and Fair Value of Held-to-maturity Investments | The following table summarizes unrealized gains, losses, and fair value of held-to-maturity investments:
|  | June 30, 2014 |  |  | December 31, 2013 |
Cost/amortized cost |  | $ | 12,145 |  |  | $ | 11,748 |
Gross unrealized gains |  |  | 64 |  |  |  | 20 |
Gross unrealized losses |  |  | (752 | ) |  |  | (1,459 | )
Fair value |  | $ | 11,457 |  |  | $ | 10,309 |
Schedule of Maturity Profile of Held-to-maturity Investments | The following table sets forth the maturity profile of held-to-maturity investments; however, these investments may be called prior to their stated maturity date:
|  | June 30, 2014 |  |  | December 31, 2013 |
Due within one year |  | $ | — |  |  | $ | — |
Due one year through five years |  |  | — |  |  |  | — |
Due five years through ten years |  |  | 671 |  |  |  | 686 |
Due over ten years |  |  | 11,474 |  |  |  | 11,062 |
Total |  | $ | 12,145 |  |  | $ | 11,748 |

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- Definition Tabular disclosure of all investments in certain debt and equity securities for which the entity has the positive intent and ability to hold until maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5086-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6435544&loc=d3e41834-113960 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27405-111563 + Details
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