Goodwill and Long-Lived Assets - Additional Information (Detail) - USD ($)		3 Months Ended			6 Months Ended		12 Months Ended
	Nov. 30, 2021	Nov. 30, 2021	Aug. 31, 2021	Nov. 30, 2020	Nov. 30, 2021	Nov. 30, 2020	May 31, 2021
Impaired Long Lived Assets Held And Used [Line Items]
Goodwill	$ 370,191,000	$ 370,191,000			$ 370,191,000		$ 351,056,000
Impairment of goodwill and long-lived assets		0		$ 3,815,000	0	$ 13,739,000
Impairment of long-lived assets		0		3,815,000	0	13,739,000
Long Lived Assets Held And Used | Fair Value, Nonrecurring | Oil and Gas Properties
Impaired Long Lived Assets Held And Used [Line Items]
Fixed asset net book value	7,375,000	7,375,000			7,375,000
Intangible assets net book value					2,374,000
Impairment of long-lived assets					1,441,000
Long Lived Assets Held And Used | Fair Value, Nonrecurring | Oil and Gas Properties | Fair Value, Inputs, Level 2
Impaired Long Lived Assets Held And Used [Line Items]
Fair market value of assets	5,934,000	5,934,000			5,934,000
Other
Impaired Long Lived Assets Held And Used [Line Items]
Goodwill	0	$ 0			$ 0		0
Impairment of goodwill	$ 198,290,000						$ 198,290,000
Impairment of long-lived assets				$ 3,815,000		$ 11,810,000
Cryogenics
Impaired Long Lived Assets Held And Used [Line Items]
Impairment of goodwill and long-lived assets			$ 4,333,000
Impairment of long-lived assets			3,662,000
Cryogenics | Long Lived Assets Held for Sale
Impaired Long Lived Assets Held And Used [Line Items]
Carrying value long-lived assets			13,526,000
Cryogenics | Long Lived Assets Held for Sale | Fair Value, Nonrecurring
Impaired Long Lived Assets Held And Used [Line Items]
Fair market value of assets			9,193,000
Jefferson
Impaired Long Lived Assets Held And Used [Line Items]
Impairment of goodwill and long-lived assets			1,423,000
Jefferson | Long Lived Assets Held And Used
Impaired Long Lived Assets Held And Used [Line Items]
Carrying value long-lived assets			1,823,000
Jefferson | Long Lived Assets Held And Used | Fair Value, Nonrecurring
Impaired Long Lived Assets Held And Used [Line Items]
Fair market value of assets			400,000
Superior Tools
Impaired Long Lived Assets Held And Used [Line Items]
Impairment of goodwill and long-lived assets			$ 506,000