Quarterly report pursuant to Section 13 or 15(d)

Goodwill - Narrative (Details)

v3.20.1
Goodwill - Narrative (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2020
USD ($)
reporting_unit
Mar. 31, 2019
USD ($)
Goodwill [Line Items]    
Goodwill impairment $ 81,943 $ 0
Number of reporting units | reporting_unit 1  
Brinks Home Security | Valuation Technique, Discounted Cash Flow | COVID-19 Pandemic    
Goodwill [Line Items]    
Goodwill impairment $ 81,943