Background and Basis of Presentation (Details) - GetGo, Inc. [Member]	Jan. 31, 2017 shares
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pro rata distribution of the common stock of GetGo to stockholders, percent	100.00%
Share issued in acquisitions (shares)	26,900,000
Common stock conversion ratio	1
LogMeIn shares received in disposal of GetGo	26,900,000
LogMeIn shares received in disposal as percent of Comany share outstanding (percent)	0.171844291
Fractional shares of LogMeIn received (shares)	0