Business Acquisitions - Additional Information (Details) - USD ($)					12 Months Ended
	Jun. 01, 2018	Nov. 03, 2017	Dec. 13, 2016	Jul. 08, 2016	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2018	Jun. 30, 2018
Business Acquisition [Line Items]
Cash paid					$ 4,100,000	$ 67,117,000	$ 35,029,000
Contingent consideration					1,600,000	0	0
Goodwill					0	0	19,916,000
Borrowings on credit facility					41,714,000	87,476,000	0
Depreciation expense					8,807,000	6,455,000	5,173,000
Accretion of asset retirement obligation					129,000	51,000	0
Net assets acquired					4,100,000	69,617,000	35,029,000
Gain on bargain purchases					0	0	$ 19,990,000
Fitlosophy, Inc.
Business Acquisition [Line Items]
Cash paid	$ 2,500,000
Contingent earn-out consideration	10,500,000				10,500,000
Contingent consideration	1,600,000							$ 1,600,000
Purchase price	4,100,000
Goodwill	1,390,000				1,390,000				$ 1,390,000
Net assets acquired	$ 4,100,000
Simplicity Creative Group
Business Acquisition [Line Items]
Cash paid		$ 69,617,000
Goodwill		9,642,000
Transaction costs		3,411,000
Borrowings on credit facility		60,000,000
Asset retirement obligations acquired					1,163,000
Reduction in asset retirement obligation fair value					126,000
Depreciation expense					166,000
Accretion of asset retirement obligation					129,000
Net assets acquired		$ 69,617,000
The McCall Pattern Company
Business Acquisition [Line Items]
Cash paid			$ 13,914,000
Transaction costs			1,484,000
Net assets acquired			$ 33,528,000
Lawrence Schiff Silk Mills, Inc.
Business Acquisition [Line Items]
Cash paid				$ 1,125,000
Net assets acquired				$ 1,501,000
Other long-term obligations | Simplicity Creative Group
Business Acquisition [Line Items]
Asset retirement obligation					$ 1,217,000	$ 1,214,000