v3.22.4
Goodwill and Intangible Assets
 12 Months Ended
Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets Goodwill and Intangible Assets
Goodwill
The change in the carrying amount of goodwill during the year ended December 31, 2022 was the result of the sale of the Canada business. The changes in the carrying amount of goodwill for the years ended December 31, 2022 and 2021, were as follows (in thousands):
Balance as of January 1, 2021$837,077 
Effect of Foreign Currency Translation76 
Balance as of December 31, 2021837,153 
Sale of Canada business(20,000)
Effect of Foreign Currency Translation349 
Balance as of December 31, 2022$817,502 
Intangible assets, net
The following table presents intangible asset balances as of December 31, 2022 and 2021 (in thousands):
December 31, 2022December 31, 2021
Gross Carrying AmountAccumulated AmortizationNet Carrying AmountGross Carrying AmountAccumulated AmortizationNet Carrying AmountEstimated
Useful Lives
Definite-lived intangible assets:
Customer contracts$892,091 $(892,091)$— $969,376 $(920,617)$48,759 10 years
2GIG 2.0 technology— — — 17,000 (17,000)— 8 years
Other technology2,917 (2,917)— 4,725 (4,725)— 
2 - 7 years
Space Monkey technology— — — 7,100 (7,100)— 6 years
Patents11,329 (9,171)2,158 11,180 (8,076)3,104 5 years
Total definite-lived intangible assets:906,337 (904,179)2,158 1,009,381 (957,518)51,863 
Indefinite-lived intangible assets:
Domain names65 — 65 65 — 65 
Total Indefinite-lived intangible assets65 — 65 65 — 65 
Total intangible assets, net$906,402 $(904,179)$2,223 $1,009,446 $(957,518)$51,928 
During the years ended December 31, 2022 and 2021, the Company added $0.3 million and $0.4 million of intangible assets related to patents, respectively. Amortization expense related to intangible assets was approximately $47.8 million, $60.0 million and $69.5 million for the years ended December 31, 2022, 2021, and 2020, respectively.
As of December 31, 2022, the remaining weighted-average amortization period for definite-lived intangible assets was 1.9 years. Estimated future amortization expense of intangible assets, excluding approximately $0.1 million in patents currently in process, is as follows as of December 31, 2022 (in thousands):
 
2023$840 
2024640 
2025523 
20265 
20271 
Thereafter— 
Total estimated amortization expense$2,009