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Fair Value of Financial Assets and Liabilities
6 Months Ended
Jun. 30, 2016
Fair Value Disclosures [Abstract]  
Fair Value of Financial Assets and Liabilities
12. Fair Value of Financial Assets and Liabilities

A three-tier fair value hierarchy has been established which prioritizes the inputs used in measuring fair value. These tiers include:

    Level 1 - defined as observable inputs such as quoted prices in active markets;

 

    Level 2 - defined as observable inputs other than Level 1 prices such, as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities; and

 

    Level 3 - defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions.

 

Long-Term Debt:

Our financial assets and liabilities that are disclosed but not measured at fair value include the Senior Secured Notes, the Convertible Notes and the Amended and Restated Senior Term Facility (when outstanding), which are reflected on the unaudited condensed consolidated balance sheet at cost. The fair value measurements are classified as Level 2 within the fair value hierarchy since they are based on quoted market prices of our instruments in markets that are not active. We estimated the fair value of the Senior Secured Notes, Convertible Notes and Amended and Restated Senior Term Facility (when outstanding) by calculating the upfront cash payment a market participant would require to assume these obligations. The upfront cash payments used in the calculations of fair value on our June 30, 2016 unaudited condensed consolidated balance sheet, excluding any issuance costs, is the amount that a market participant would be able to lend at June 30, 2016 to an entity with a credit rating similar to ours and achieve sufficient cash inflows to cover the scheduled cash outflows under the Senior Secured Notes and the Convertible Notes. The calculated fair value of our Convertible Notes is highly correlated to our stock price and as a result significant changes to our stock price could have a significant impact on the calculated fair value of our Convertible Notes.

The fair value and carrying value of long-term debt as of June 30, 2016 and December 31, 2015 was as follows (in thousands):

 

     June 30, 2016      December 31, 2015  
     Fair Value (1)      Carrying
Value
     Fair Value (1)      Carrying
Value
 

Senior Secured Notes

   $ 521,000       $ 525,000       $ —         $ —     

Convertible Notes

     240,000         283,036         352,000         274,528   

Amended and Restated Senior Term Facility

     —           —           299,000         301,503   

 

(1) Fair value amounts are rounded to the nearest million.