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Fair Value Measurements
12 Months Ended
Dec. 31, 2017
Fair Value Disclosures [Abstract]  
Fair Value Measurements
Fair Value Measurements

Cash and cash equivalents and investments consist of the following:
 
 
December 31,
  
 
2017
 
2016
  
 
(amounts in thousands)
Cash and cash equivalents
 
  

 
  

Cash
 
$
49,452

 
$
49,495

Money market funds
 
56,640

 
56,208

Total cash and cash equivalents
 
106,092

 
105,703

Investments
 
  

 
  

Short-term investments
 
51

 
63

Long-term restricted cash
 
1,181

 
1,181

Total cash and cash equivalents and investments
 
$
107,324

 
$
106,947



The inputs to the valuation techniques used to measure fair value are classified into the following categories:
Level 1 — Quoted prices in active markets for identical assets or liabilities
Level 2 — Quoted prices for similar assets and liabilities in active markets or inputs that are observable
Level 3 — Inputs that are unobservable (for example, cash flow modeling inputs based on assumptions)
As of December 31, 2017, the Company’s investment in cash and cash equivalents of $106.1 million, short-term investments of $0.1 million and long-term restricted cash of $1.2 million were measured at fair value using Level 1 inputs. The short-term investments amount is included in “Prepaid expenses and other current assets” on the Consolidated Balance Sheet as of December 31, 2017. Long-term restricted cash consists of a letter of credit collateralized by U.S. Treasury bills that are restricted as to withdrawal or use under terms of the Company’s New York office lease. During the year ended December 31, 2017, there were no transfers in or out of the Company’s Level 1 assets.