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Fair Value (Tables) | 12 Months Ended
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Dec. 31, 2017
Fair Value Disclosures [Abstract] |
Fair Value Measurements, Recurring and Nonrecurring | The valuation methodologies used for the Company's financial instruments measured on a recurring basis at fair value, including the general classification of such instruments pursuant to the valuation hierarchy, is set forth in the tables below.
(in thousands) |  | As of December 31, 2017 |  | Fair Value Measurements |
|  | Carrying Amount |  | Fair Value |  | Level 1 |  | Level 2 |  | Level 3 |
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred acquisition cost |  | $ | 0 |  | $ | 0 |  |  |  |  |  |  |  | $ | 0 |
(in thousands) |  | As of December 31, 2016 |  | Fair Value Measurements |
|  | Carrying Amount |  | Fair Value |  | Level 1 |  | Level 2 |  | Level 3 |
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred acquisition cost |  | $ | 789 |  | $ | 789 |  |  |  |  |  |  |  | $ | 789 |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation | The following is a rollforward of deferred acquisition costs in 2016 and 2017.
(in thousands) |  | Acquisition of Polar |  | 2015 Acquisition |  | Total Deferred Acquisition Cost Payable |
Balance at January 1, 2016 |  | $ | 667 |  | $ | 1,235 |  | $ | 1,902 |
Payments |  |  | (667) |  |  | (1,010) |  |  | (1,677) |
Total adjustments included in earnings |  |  | — |  |  | 564 |  |  | 564 |
Balance at December, 31, 2016 |  | $ | — |  | $ | 789 |  | $ | 789 |
Payments |  |  | — |  |  | (789) |  |  | (789) |
Total adjustments included in earnings |  |  | — |  |  | — |  |  | — |
Balance at December 31, 2017 |  | $ | — |  | $ | — |  | $ | — |

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- Definition Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19279-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2C -URI http://asc.fasb.org/extlink&oid=66048111&loc=SL7498348-110258 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258 + Details
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- Definition Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19279-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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