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Fair Value Measurements
12 Months Ended
Dec. 31, 2016
Fair Value Disclosures [Abstract]  
Fair Value Measurements
FAIR VALUE MEASUREMENTS
Authoritative guidance on fair value measurements provides a framework for measuring fair value and establishes a fair value hierarchy that prioritizes the inputs used to measure fair value, giving the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 inputs) and the lowest priority to unobservable inputs (Level 3 inputs).
The Company uses valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs. In measuring the fair value of the Company’s assets and liabilities, market data or assumptions are used that the Company believes market participants would use in pricing an asset or liability, including assumptions about risk when appropriate. The Company’s assets that are measured at fair value on a recurring basis include the following (in thousands):
 
 
 
Fair Value Measurements Using
 
Total
 
Quoted Prices
in Active
Markets
(Level 1)
 
Significant  Other
Observable
Inputs
(Level 2)
 
Unobservable
Inputs
(Level 3)
At December 31, 2016:
 
 
 
 
 
 
 
Cash equivalents
$
55,674

 
$
55,674

 
$

 
$

At December 31, 2015:
 
 
 
 
 
 
 
Cash equivalents
$
52,421

 
$
52,421

 
$

 
$


The Company had no transfers of assets between any of the above levels during the years ended December 31, 2016 or 2015.
Cash equivalents include treasury bills and money market funds that invest in United States government obligations and a Canadian dollar investment account, all with original maturities of three months or less. The original costs of these assets approximate fair value due to their short-term maturities.
Other Financial Instruments:
At December 31, 2016, the carrying value of the Company's debt was $246.9 million, net of $3.1 million of unamortized debt issuance costs. At December 31, 2015, the carrying value was $245.7 million, net of $4.3 million of unamortized debt issuance costs. The estimated fair value of the debt was approximately $232.6 million at December 31, 2016 and $152.5 million at December 31, 2015. The fair value of the Company's senior notes is based on quoted market prices (Level 1 inputs).