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Fair Value Measurements
12 Months Ended
Dec. 31, 2019
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
The following tables present assets and liabilities carried at fair value (in thousands):
Fair Value Measurements Using:
December 31, 2019Quoted
Market
Prices in
Active
Markets
(Level 1)
Other
Observable
Inputs
(Level 2)
Unobservable
Inputs
(Level 3)
Assets:
Cash equivalents$1,086,402  $—  $1,086,402  $—  
Restricted cash$6,388  $2,048  $4,340  $—  
Liabilities:
Interest rate collar$3,847  $—  $3,847  $—  
Fair Value Measurements Using:
December 31, 2018Quoted
Market
Prices in
Active
Markets
(Level 1)
Other
Observable
Inputs
(Level 2)
Unobservable
Inputs
(Level 3)
Assets:
Cash equivalents$759,257  $—  $759,257  $—  
Restricted cash$4,322  $2,015  $2,307  $—  
Liabilities:
Interest rate collar$619  $—  $619  $—