Segment Information - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Jun. 30, 2020
Segment Information
Impairment of retail store fixed assets		$ 1.9
Impairment of operating lease right-of-use assets	$ 1.2	1.2
Tailored Brands, Inc [Member]
Segment Information
Wrote-off of receivable	1.1	1.1
J.C. Penney Company, Inc
Segment Information
Wrote-off of receivable			$ 3.3
Wholesale [Member] | Tailored Brands, Inc [Member]
Segment Information
Wrote-off of receivable	1.1	1.1
Employee costs	0.5
Reserves for obsolete and slow moving inventory	0.5
Other related charges	0.2
Income from government wage subsidies	0.3
Wholesale [Member] | J.C. Penney Company, Inc
Segment Information
Wrote-off of receivable	4.4	4.4
Employee costs		1.9
Reserves for obsolete and slow moving inventory		0.5
Other related charges		0.2
Income from government wage subsidies		1.6
Retail Segment [Member]
Segment Information
Employee costs	0.1	0.1
Early lease termination charges	1.5	1.5
Impairment of retail store fixed assets	1.0	1.0
Other Segment [Member]
Segment Information
Employee costs	1.1	2.0
Reserves for obsolete and slow moving inventory	0.5	1.6
Other related charges	0.2	0.6
Income from government wage subsidies	1.1	2.5
Impairment of retail store fixed assets	$ 2.1	$ 2.1