Fair Value Disclosure

Recurring Fair Value Measurements: The following table presents the Company's assets and liabilities accounted for at fair value on a recurring basis:



			Fair Value Measurements at Reporting Date Using
			Quoted Prices in				Significant
			Active Markets for		Significant Other		Unobservable
			Identical Assets		Observable Inputs		Inputs
Description	December 31, 2015		(Level 1)		(Level 2)		(Level 3)
Assets:
Available for sale securities	$	7,247	$	7,247	$	—	$	—
Interest rate swap agreements	3		—		3		—
Foreign currency exchange contracts	386		—		386		—
	$	7,636	$	7,247	$	389	$	—
Liabilities:
Interest rate swap agreements	$	698	$	—	$	698	$	—
	$	698	$	—	$	698	$	—



			Fair Value Measurements at Reporting Date Using
			Quoted Prices in				Significant
			Active Markets for		Significant Other		Unobservable
			Identical Assets		Observable Inputs		Inputs
Description	December 31, 2014		(Level 1)		(Level 2)		(Level 3)
Assets:
Available for sale securities	$	7,220	$	7,220	$	—	$	—
Interest rate swap agreements	181		—		181		—
Foreign currency exchange contracts	292		—		292		—
	$	7,693	$	7,220	$	473	$	—
Liabilities:
Foreign currency exchange contracts	$	412	$	—	$	412	$	—
	$	412	$	—	$	412	$	—

Bellaire's Mine Water Treatment Trust invests in available for sale securities that are reported at fair value based upon quoted market prices in active markets for identical assets; therefore, they are classified as Level 1 within the fair value hierarchy. See Note 7 for further discussion of Bellaire's Mine Water Treatment Trust.

The Company uses significant other observable inputs to value derivative instruments used to hedge foreign currency and interest rate risk; therefore, they are classified within Level 2 of the valuation hierarchy. The fair value for these contracts is determined based on exchange rates and interest rates, respectively. See Note 9 for further discussion of the Company's derivative financial instruments.

There were no transfers into or out of Levels 1, 2 or 3 during the year ended December 31, 2015.

NACoal's 2012 acquisition of Centennial included contingent consideration. The contingent consideration is structured as an earn-out payment to the sellers of Centennial. The earn-out is calculated as a percentage by which the monthly average coal selling price exceeds an established threshold multiplied by the number of tons sold during the month. The earn-out period covers the first 15.0 million tons of coal sold from the Centennial coal reserves. There is no monetary cap on the amount payable under this contingent payment arrangement. During 2014, the estimate of the contingent consideration liability decreased to zero and the reversal of the $1.6 million was recorded as a reduction of Selling, general and administrative expenses in the Consolidated Statements of Operations. At December 31, 2015 and December 31, 2014, the estimated fair value of the earn-out liability, which is classified as Level 3 within the fair value hierarchy, is zero.

Nonrecurring Fair Value Measurements: The Company determined that indicators of potential impairment were present during the fourth quarter of 2014 with respect to its Centennial mining operations asset group. The Company assessed the recoverability of Centennial's assets and determined that the assets were not fully recoverable when compared to the remaining future undiscounted cash flows from these assets. As a result, the Company estimated the fair value of the asset group and the long-lived assets were written down to their estimated fair value which resulted in a non-cash asset impairment charge of $105.1 million. The asset impairment charge was recorded as "Centennial long-lived asset impairment charge" in the Consolidated Statement of Operations for the year ended December 31, 2014 and relates exclusively to the NACoal segment. The fair value of the asset group was calculated using the combination of a market and income approach and reduced the carrying value of coal land and real estate to $7.2 million, other property, plant and equipment to $37.1 million and intangible assets to zero as of December 31, 2014.

The fair value estimate for the coal land and real estate and other property, plant and equipment was calculated using market data for similar assets, which are classified as Level 2 inputs. The fair value of the coal supply agreement and non-compete intangible assets were estimated to be zero given current market conditions. Key inputs in this model are based on significant unobservable inputs and include the forecast of tons sold and coal pricing and are classified as Level 3 inputs.

The Company assessed the goodwill of the Centennial reporting unit as of October 1, 2013. In performing the test of goodwill, the Company utilized the two-step approach. The first step requires a comparison of the carrying value of the reporting unit to the estimated fair value of the reporting unit. If the carrying value of the reporting unit exceeds its estimated fair value, the Company performs the second step of the goodwill impairment test to calculate the implied fair value of the reporting unit's goodwill and compares that to its carrying value to measure the amount of the impairment, if any.

In step one, the Company used a combination of an income approach and a market approach to estimate the fair value of the Centennial reporting unit. The income approach utilized a discounted cash flow valuation technique ("DCF model") which incorporates the Company's historical results and projected, future estimates of after-tax cash flows attributable to the reporting units future growth rates, terminal value amounts and the weighted average cost of capital. The market approach utilized the guideline public company method and the guideline merged and acquired company method to determine the fair value of the reporting unit. The valuation result from the market approach was dependent upon the selection of the comparable guideline companies and transactions and the revenue multiple applied to the Centennial reporting unit's historical and projected financial information. Significant management judgment was applied in determining the weight, 25% and 75%, assigned to the outcome of the market approach and the income approach, respectively, which resulted in one single estimate of fair value of the reporting unit. The Company determined that the carrying value of the Centennial reporting unit exceeded its estimated fair value.

In performing step 2 of the goodwill impairment test, the Company estimated the implied fair value of the Centennial reporting unit's goodwill and concluded goodwill was fully impaired resulting in a non-cash charge of $4.0 million recognized during the year ended December 31, 2013. This charge had no impact on the Company's cash flows or compliance with debt covenants. The primary factors contributing to the goodwill impairment charge were changes to the mine plan in 2014 and assumptions regarding future metallurgical coal price trends and mining costs and the associated impact on future cash flows from these changes.

The fair value measurement of the reporting unit under the step-one analysis and the step-two analysis in their entirety are classified as Level 3 inputs. The estimates and assumptions underlying the fair value calculations used in the Company's annual impairment tests are uncertain by their nature and can vary significantly from actual results. Factors that management must estimate include, but are not limited to, industry and market conditions, sales volume and pricing, mining costs, capital expenditures, working capital changes, cost of capital, debt-equity mix and tax rates. The estimates and assumptions that most significantly affect the fair value calculation are metallurgical coal prices and sales volume and the associated cash flow assumptions, weighted average cost of capital, and revenue multiples from the selected comparable companies. The estimates and assumptions used in the estimate of fair value are consistent with those the Company uses in its internal planning.

In 2014 and 2013, KC considered its operating loss to be an indicator of impairment. For KC’s asset impairment analysis, the primary input is projected future store level cash flows utilizing assumptions consistent with those the Company uses in its internal planning, which are classified as Level 3 inputs. As a result of the year-end review of long-lived store-related assets, the Company recorded impairment charges of $0.9 million and $1.1 million in 2014 and 2013, respectively, included in depreciation expense within "Selling, general and administrative expenses" in the Consolidated Statements of Operations. Long-lived assets at the stores consist mainly of leasehold improvements and furniture and fixtures. The fair value for leasehold improvements was determined to be zero as such assets were deemed to have no future use or economic benefit based on the Company's analysis using market participant assumptions, and therefore no expected future cash flows. The fair value for store fixtures is based on the market exit price based on historical experience. The impairment charges in 2014 were largely the result of decreased expected future operating results.

Other Fair Value Measurement Disclosures: The carrying amounts of cash and cash equivalents, accounts receivable and accounts payable approximate fair value due to the short-term maturities of these instruments. The fair values of revolving credit agreements and long-term debt, excluding capital leases, were determined using current rates offered for similar obligations taking into account subsidiary credit risk, which is Level 2 as defined in the fair value hierarchy. At December 31, 2015 and December 31, 2014 , both the fair value and the book value of revolving credit agreements and long-term debt, excluding capital leases, was $159.8 million and $236.3 million, respectively.

Financial instruments that potentially subject the Company to concentration of credit risk consist principally of accounts receivable and derivatives. HBB maintains significant accounts receivable balances with several large retail customers. At December 31, 2015 and 2014, receivables from HBB's five largest customers represented 56.8% and 53.3%, respectively, of the Company's consolidated, net accounts receivable. In addition, under its mining contracts, NACoal recognizes revenue and a related receivable as coal or limerock is delivered or predevelopment services are provided. These mining contracts provide for monthly settlements. HBB and NACoal's significant credit concentration is uncollateralized; however, historically minimal credit losses have been incurred. To further reduce credit risk associated with accounts receivable, the Company performs periodic credit evaluations of its customers, but does not generally require advance payments or collateral. The Company enters into derivative contracts with high-quality financial institutions and limits the amount of credit exposure to any one institution. See Note 9 for further discussion of the Company's derivative financial instruments.