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Fixed Assets (Tables)
 12 Months Ended
Dec. 31, 2022
Property, Plant and Equipment [Abstract]  
Summary Of Fixed Assets

The following is a summary of fixed assets as of December 31, 2022 and 2021 (in thousands):

 

 

December 31,

 

 

 

2022

 

 

2021

 

Office equipment

 

$

408,891

 

 

$

354,292

 

Leasehold improvements

 

 

129,279

 

 

 

113,576

 

Building

 

 

73,549

 

 

 

65,327

 

Aircraft engine operating leases

 

 

8,612

 

 

 

—

 

 

 

 

620,331

 

 

 

533,195

 

Accumulated depreciation and amortization

 

 

(420,288

)

 

 

(364,989

)

 

 

$

200,043

 

 

$

168,206