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Intangible Assets, Net (Tables)
3 Months Ended
Mar. 31, 2021
Intangible Assets, Net [Abstract]  
Gross and Net Carrying Amounts for each Major Class of Intangible Assets

As of March 31, 2021

As of December 31, 2020

Gross carrying

Accumulated

Net book

Gross carrying

Accumulated

Net book

amount

amortization

value

amount

amortization

value

(in thousands)

Current contract intangibles

$

4,794,137

$

(2,520,675)

$

2,273,462

$

4,876,880

$

(2,471,438)

$

2,405,442

Network location intangibles

1,754,579

(1,043,943)

710,636

1,770,944

(1,020,236)

750,708

Intangible assets, net

$

6,548,716

$

(3,564,618)

$

2,984,098

$

6,647,824

$

(3,491,674)

$

3,156,150