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Fair Value Measurements | 12 Months Ended
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Dec. 31, 2016
Fair Value Disclosures [Abstract] |
Fair Value Measurements | Fair Value Measurements The accounting standard for fair value measurements defines fair value, and establishes a market-based framework or hierarchy for measuring fair value. The standard is applicable whenever assets and liabilities are measured at fair value. The fair value hierarchy established in the standard prioritizes the inputs used in valuation techniques into three levels as follows: Level 1 – Observable inputs – quoted prices in active markets for identical assets and liabilities; Level 2 – Observable inputs other than the quoted prices in active markets for identical assets and liabilities – includes quoted prices for similar instruments, quoted prices for identical or similar instruments in inactive markets, and amounts derived from valuation models where all significant inputs are observable in active markets; and Level 3 – Unobservable inputs – includes amounts derived from valuation models where one or more significant inputs are unobservable and require us to develop relevant assumptions. The following table summarizes the financial assets and liabilities measured at fair value on a recurring basis as of December 31, 2016 and December 31, 2015 and the level they fall within the fair value hierarchy (in thousands):
Amounts Recorded at Fair Value |  | Financial Statement Classification |  | Fair Value Hierarchy |  | Fair Value December 31, 2016 |  | Fair Value December 31, 2015
Non-COLI assets held in Deferred Supplemental Compensation Plan |  | Other assets |  | 1 |  | $ | 299 |  |  | $ | 264 |
Interest rate swaps |  | Accrued expenses |  | 2 |  | $ | — |  |  | $ | 123 |
Interest rate swaps |  | Other current assets |  | 2 |  | $ | 73 |  |  | $ | — |
Earn-out obligation-current |  | Current portion of earn-out obligation |  | 3 |  | $ | — |  |  | $ | 9,678 |
Earn-out obligation-long-term |  | Earn-out obligation |  | 3 |  | $ | — |  |  | $ | 10,166 |
Non-COLI assets held in the deferred supplemental compensation plan consist of equity funds with fair value based on observable inputs such as quoted prices for identical assets in active markets and changes in its fair value are recorded as selling, general and administrative expenses. We account for our interest rate swap agreements under the provisions of ASC 815, Derivatives and Hedging, and have determined that our swap agreements qualify as cash flow hedges. Accordingly, the fair value of the swap agreements, which is an asset recorded in other current assets of approximately $73 thousand and a liability recorded in accrued expenses of approximately $123 thousand at December 31, 2016 and 2015, respectively. The offset, net of an income tax effect of approximately $28 thousand and $48 thousand is included in accumulated other comprehensive loss in the accompanying balance sheets as of December 31, 2016 and 2015, respectively. The amounts paid and received on the swap agreements are recorded in interest expense in the period during which the related floating-rate interest is incurred. We determine the fair value of the swap agreements based on a valuation model using market data inputs. We utilized a probability-weighted discounted cash flow method to determine the fair value of our Aviation Acquisition post-closing earn-out obligation at December 31, 2015. Probabilities were applied to each potential pay-out scenario and the resulting values were discounted using a rate that considered our weighted average cost of capital, as well as a specific risk premium associated with the riskiness of the earn out itself, the related projections, and the overall business. Significant unobservable inputs used to value the contingent consideration include projected earnings before interest, taxes, depreciation and amortization and the discount rate. In July 2016, we reached an agreement with the sellers for an early termination and final payment of our post-closing earn-out obligation. The final earn-out payment of $10.5 million was made in July 2016 (See Note 5, Acquisitions, for a discussion of the termination of our Aviation Acquisition earn-out obligation). During the twelve months ended December 31, 2016, the fair value of the earn-out obligation related to the Aviation Acquisition decreased by approximately $1.3 million, which was recorded within cost and operating expenses. The following table provides a reconciliation of the beginning and ending balance of the earn-out obligations measured at fair value on a recurring basis that used significant unobservable inputs (Level 3).
| Current portion |  | Long-term portion |  | Total
Balance as of December 31, 2015 | $ | 9,678 |  |  | $ | 10,166 |  |  | $ | 19,844 |
Earn-out payments | (18,515 | ) |  | — |  |  | (18,515 | )
Fair value adjustment included in net income | (1,608 | ) |  | 279 |  |  | (1,329 | )
Reclassification from long-term to current | 10,445 |  |  | (10,445 | ) |  | — |
Balance as of December 31, 2016 | $ | — |  |  | $ | — |  |  | $ | — |

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- Definition The entire disclosure of the fair value measurement of assets and liabilities, which includes financial instruments measured at fair value that are classified in shareholders' equity, which may be measured on a recurring or nonrecurring basis. + 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 -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 1 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258 + Details
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