Subsequent Events (Details)			3 Months Ended
	Nov. 05, 2019 USD ($)	Nov. 04, 2019 USD ($) employee	Sep. 29, 2019	Nov. 07, 2019 USD ($)
Subsequent Event [Line Items]
Non-compete period			10 months 24 days
Subsequent Event | Minimum
Subsequent Event [Line Items]
Expected restructuring charges				$ 1,000,000.0
Subsequent Event | Maximum
Subsequent Event [Line Items]
Expected restructuring charges				$ 2,000,000.0
Subsequent Event | Supply Agreement | Verisure S.a.r.l
Subsequent Event [Line Items]
Renewal term		5 years
Aggregate minimum purchase commitment		$ 500,000,000.0
Prepayment		20,000,000.0
Annual prepayments		40,000,000.0
Proceeds from development services		$ 10,000,000.0
Term of contract		5 years
Minimum period prior to expiration for re-negotiation notice		12 months
Minimum period for agreement notice		6 months
Automatic renewal period		5 years
Subsequent Event | Revolving Credit Facility | Line of Credit | Credit Agreement
Subsequent Event [Line Items]
Credit agreement term	2 years
Maximum borrowing capacity	$ 40,000,000.0
Borrowing base multiplier (as a percentage)	60.00%
Minimum amount of foreign subsidiaries voting interest not secured (as a percentage)	65.00%
Additional interest in event of default (as a percentage)	5.00%
Annual facility fee (as a percentage)	0.25%
Period of bankruptcy petition	45 days
Subsequent Event | Revolving Credit Facility | Line of Credit | Credit Agreement | Prime Rate
Subsequent Event [Line Items]
Basis spread on variable rate (as a percentage)	2.25%
Subsequent Event | Verisure S.a.r.l | Non-compete Agreements
Subsequent Event [Line Items]
Non-compete period		3 years
Subsequent Event | Business | Purchase Agreement
Subsequent Event [Line Items]
Cash plus inventory transferred in closing		$ 50,000,000.0
Number of employees to be offered positions | employee		25