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Accounts Receivable
 12 Months Ended
Dec. 31, 2015
Receivables [Abstract]  
Accounts Receivable

3.  Accounts Receivable

 

 

 

December 31,

 

 

 

2015

 

 

2014

 

 

 

(In Thousands)

 

Trade receivables and other

 

$

93,296

 

 

$

88,900

 

Allowance for doubtful accounts

 

 

(694

)

 

 

(826

)

 

 

$

92,602

 

 

$

88,074

 

 

Our sales to contractors and independent sales representatives are generally subject to a mechanic’s lien or band protection in the Climate Control Business.  Sales to other customers are generally unsecured.  Credit is extended to customers based on an evaluation of the customer’s financial condition and other factors.  Concentrations of credit risk with respect to trade receivables are monitored and this risk is reduced due to the large number of customers comprising our customer bases and their dispersion across many different industries and geographic areas (primarily as it relates to the Climate Control Business) and payment terms of 15 days or less relating to most of our significant customers in the Chemical Business.  Ten customers (including their affiliates), primarily relating to the Chemical Business, account for approximately 30% of our total net receivables at December 31, 2015.