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Intangible Assets (Tables)
9 Months Ended
Sep. 30, 2021
Goodwill And Intangible Assets Disclosure [Abstract]  
Summary of Intangible Assets

The following table presents intangible assets (in thousands) as of:

 

 

 

September 30, 2021

 

 

December 31, 2020

 

 

 

Gross

Carrying

Amount

 

 

Accumulated Amortization

 

 

Gross

Carrying

Amount

 

 

Accumulated Amortization

 

Customer relationships

 

$

1,709,115

 

 

$

(266,507

)

 

$

195,435

 

 

$

(94,690

)

Trade names

 

 

201,861

 

 

 

(125,375

)

 

 

52,061

 

 

 

(38,138

)

Subcontractor relationships

 

 

5,440

 

 

 

(2,360

)

 

 

5,440

 

 

 

(1,944

)

Non-compete agreements

 

 

13,519

 

 

 

(2,586

)

 

 

3,719

 

 

 

(2,001

)

Developed technology

 

 

97,200

 

 

 

(944

)

 

 

-

 

 

 

-

 

Total intangible assets

 

$

2,027,135

 

 

$

(397,772

)

 

$

256,655

 

 

$

(136,773

)

 

Estimated Amortization Expense for Intangible Assets

The following table presents the estimated amortization expense for intangible assets for the years ending December 31 (in thousands):

 

2021 (from October 1, 2021)

 

$

96,494

 

2022

 

 

248,732

 

2023

 

 

217,259

 

2024

 

 

187,624

 

2025

 

 

165,262

 

Thereafter

 

 

713,992

 

Total future net intangible amortization expense

 

$

1,629,363