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Fair Value Measurements (Tables) | 3 Months Ended
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Mar. 31, 2018
Fair Value Disclosures [Abstract] |
Assets Measured at Fair Value on Recurring Basis | The Company had no liabilities required to be measured at fair value at March 31, 2018 and December 31, 2017. The Company’s assets measured at fair value on a recurring basis at March 31, 2018 and December 31, 2017, were as follows (in thousands):
|  | March 31, 2018 |  |  | Markets for Identical Assets (Level 1) |  |  | Observable Inputs (Level 2) |  |  | Unobservable Inputs (Level 3) |
Deferred compensation plan investments |  | $ | 25,215 |  |  | $ | 25,215 |  |  | $ | — |  |  | $ | — |
Total assets measured at fair value |  | $ | 25,215 |  |  | $ | 25,215 |  |  | $ | — |  |  | $ | — |
|  | December 31, 2017 |  |  | Markets for Identical Assets (Level 1) |  |  | Observable Inputs (Level 2) |  |  | Unobservable Inputs (Level 3) |
Deferred compensation plan investments |  | $ | 25,055 |  |  | $ | 25,055 |  |  | $ | — |  |  | $ | — |
Total assets measured at fair value |  | $ | 25,055 |  |  | $ | 25,055 |  |  | $ | — |  |  | $ | — |

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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: 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 2: 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 Reference 3: 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 + Details
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