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Fair Value Measurements
6 Months Ended
Jun. 30, 2015
Fair Value Disclosures [Abstract]  
Fair Value Measurements
Fair Value Measurements
ASC 820 defines fair value, establishes a framework for measuring fair value and enhances disclosures about fair value measures required under other accounting pronouncements but does not change existing guidance as to whether or not an instrument is carried at fair value. This guidance also specifies a fair value hierarchy based upon the observability of inputs used in valuation techniques. In accordance with this guidance, fair value measurements are classified under the following hierarchy:
Level 1 - Quoted prices for identical instruments in active markets.
Level 2 - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active and model-derived valuations in which all significant inputs or significant value-drivers are observable in active markets.
Level 3 - Model-derived valuations in which one or more significant inputs or significant value-drivers are unobservable.
As of June 30, 2015December 31, 2014 and June 30, 2014, the fair value of our commodity derivative contracts was $1.7 million, $1.3 million and $1.5 million, respectively. In accordance with ASC 820, our metal, natural gas and electricity commodity derivative contracts are considered Level 2, as fair value measurements consist of both quoted price inputs and inputs provided by a third party that are derived principally from or corroborated by observable market data by correlation. These assumptions include, but are not limited to, those concerning interest rates, credit rates, discount rates, default rates and other factors. All of our derivative commodity contracts have a set term of 24 months or less.
We do not hold assets or liabilities requiring a Level 3 measurement and there have not been any transfers between the hierarchy levels during 2015 or 2014.
For purposes of financial reporting, we have determined that the carrying value of cash, accounts receivable, accounts payable, and accrued expenses approximates fair value due to their short term nature. Additionally, given the revolving nature and the variable interest rates, we have determined that the carrying value of the ABL Facility also approximates fair value. As of June 30, 2015December 31, 2014 and June 30, 2014, the fair value of our Senior Secured Notes approximated $410.6 million, $405.0 million and $428.4 million, respectively. The fair value of the Senior Secured Notes was based upon quotes from financial institutions (Level 2 in the fair value hierarchy as defined by ASC 820).