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Accounts Receivable, Net (Tables)
6 Months Ended
Jun. 30, 2021
Receivables [Abstract]  
Schedule of Components of Accounts Receivable
The components of accounts receivable, net are as follows (in thousands):
June 30,
2021
December 31,
2020
Accounts receivable$97,529 $89,502 
Allowance for credit losses(3,573)(4,696)
Allowance for product returns(1,344)(1,480)
Accounts receivable, net$92,612 $83,326 
Schedule of Changes in Allowance for Credit Losses for Accounts Receivable
The changes in our allowance for credit losses for accounts receivable are as follows (in thousands):
Three Months Ended
June 30, 2021
Three Months Ended
June 30, 2020
Six Months Ended
June 30, 2021
Six Months Ended
June 30, 2020
 Alarm.com
and Certain
Subsidiaries
All Other
Subsidiaries
 Alarm.com
and Certain
Subsidiaries
All Other
Subsidiaries
 Alarm.com
and Certain
Subsidiaries
All Other
Subsidiaries
Alarm.com
and Certain
Subsidiaries
All Other
Subsidiaries
Beginning of period balance$(3,670)$(242)$(4,555)$(234)$(4,442)$(254)$(2,500)$(84)
Impact of adopting Topic 326— — — — — — (212)(155)
(Provision for) / recovery of expected credit losses(111)(7)935 (15)(147)(3)(951)(14)
Write-offs338 118 70 11 1,146 126 113 15 
End of period balance$(3,443)$(131)$(3,550)$(238)$(3,443)$(131)$(3,550)$(238)
The changes in our allowance for credit losses for notes receivable are as follows (in thousands):
Three Months Ended
June 30, 2021
Three Months Ended
June 30, 2020
Six Months Ended
June 30, 2021
Six Months Ended
June 30, 2020
Loan
Receivables
Hardware
Financing
Receivables
Loan
Receivables
Hardware
Financing
Receivables
Loan
Receivables
Hardware
Financing
Receivables
Loan
Receivables
Hardware
Financing
Receivables
Beginning of period balance$(73)$(5)$(87)$(29)$(73)$(16)$— $(16)
Impact of adopting Topic 326— — — — — — (434)(15)
(Provision for) / recovery of expected credit losses(1)41 (8)(1)12 388 (6)
Write-offs— — — — — — — — 
End of period balance$(74)$(4)$(46)$(37)$(74)$(4)$(46)$(37)