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Fair Value Measurements | 9 Months Ended
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Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Fair Value Measurements | Fair Value Measurements We determine the fair value of our financial assets and liabilities by reference to market data and other valuation techniques as appropriate. We believe the fair value of our financial instruments, which are principally cash and cash equivalents, accounts receivable, other current assets, accounts payable and accrued liabilities, approximates their recorded values due to the short-term nature of these instruments. Our assets and liabilities measured at fair value on a recurring basis are described below. Interest rate swap contracts We hedge a portion of our variable rate debt to effectively fix the interest rates that we pay. We have interest rate swap contracts designated as cash flow hedges under ASC 815. Under these hedges, we pay interest at a weighted-average fixed rate of 2.151% and receive interest at the greater of 1% or the prevailing three-month LIBOR rate. These hedges are highly effective in offsetting changes in our future expected cash flows due to the fluctuation in the three-month LIBOR rate associated with our variable rate debt. The effectiveness of these hedges is measured quarterly on a retrospective basis. As a result of the effective matching of the critical terms on our variable rate debt being hedged to the hedging instruments being used, we have not measured any hedge ineffectiveness to date. All gains and losses from these hedges are recorded in Other comprehensive income (loss) until the future underlying payment transactions occur. Any realized gains or losses resulting from the hedges will be recognized (together with the hedged transaction) as interest expense. We estimate the fair value of our interest rate swap contracts by discounting the future cash flows of both the fixed rate and variable rate interest payments based on market yield curves. The inputs used to measure the fair value of our interest rate swap contracts are categorized as Level 2 in the fair value hierarchy. The following table shows the losses (gains) on our interest rate swap contracts:
|  | Three Months Ended |  | Nine Months Ended
|  | September 30, |  | September 30,
|  | 2016 |  | 2015 |  | 2016 |  | 2015
Losses (gains) recorded in accumulated other comprehensive loss, net of tax |  | $ | (2.7 | ) |  | $ | 1.7 |  |  | $ | (6.3 | ) |  | $ | 1.0 |
Realized (gains) losses recorded in interest expense |  | 2.0 |  |  | (0.6 | ) |  | 6.1 |  |  | 1.1 |
We expect to reclassify additional losses of $8.2 million from accumulated other comprehensive loss to interest expense in the next twelve months. The following table shows the fair value of our hedges:
| September 30, 2016 |  | December 31, 2015
Accrued liabilities | $ | 8.2 |  |  | $ | 7.9 |
Other long-term liabilities | 1.7 |  |  | 4.0 |
Total fair value | $ | 9.9 |  |  | $ | 11.9 |
Other As of September 30, 2016 and December 31, 2015, we had $15.3 million and $16.7 million of assets held for sale, respectively, which consisted of our Waukegan, Illinois manufacturing facility and a portion of our Chicago, Illinois R&D campus. During the second quarter of 2016, we sold the portion of our Chicago, Illinois R&D campus which was previously held for sale at a price that materially approximated the carrying amount, less selling costs. During the third quarter of 2016, we classified additional office buildings located in our Chicago, Illinois R&D campus as assets held for sale. The carrying amount of these buildings approximated the fair market value, less expected costs to sell. During the third quarter of 2016, we recorded a non-cash impairment charge of $5.7 million in D&A related to our Waukegan manufacturing facility. Assets held for sale are included within Prepaid expenses, deposits and other current assets and are reported at the lower of the carrying amount or fair market value, less expected costs to sell, which approximated the fair value as of September 30, 2016 and December 31, 2015. We measured the fair value of assets held for sale under a market approach and have categorized such measurements as Level 3 in the fair value hierarchy.

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