Acquisitions - Allocation of Purchase Price (Details) - USD ($) $ in Thousands	Jan. 31, 2022	Dec. 16, 2021	Jun. 30, 2021	May 13, 2021	Apr. 30, 2021
Assets acquired:
Goodwill	$ 601,040				$ 161,075
Liabilities assumed:
Net assets acquired and total purchase price		$ 226,624
Buchanan Energy
Assets acquired:
Cash and cash equivalents				$ 5,517
Receivables				2,836
Inventories				18,516
Prepaid expenses				150
Property and equipment				306,851
Contractual customer relationships				31,100
Deferred income taxes				1,343
Finance lease right-of-use assets				10,689
Operating lease right-of-use assets				11,816
Other assets				1,774
Goodwill				250,113
Total assets				640,705
Liabilities assumed:
Accounts payable				27,138
Accrued expenses				8,395
Finance lease liabilities				12,369
Operating lease liabilities				15,666
Other long-term liabilities				3,717
Total liabilities				67,285
Net assets acquired and total purchase price				$ 573,420
Circle K
Assets acquired:
Inventories			$ 5,299
Property and equipment			6,150
Finance lease right-of-use assets			37,086
Operating lease right-of-use assets			24,113
Goodwill			31,662
Total assets			104,310
Liabilities assumed:
Accrued expenses			545
Finance lease liabilities			46,576
Operating lease liabilities			15,773
Total liabilities			62,894
Net assets acquired and total purchase price			$ 41,416
Pilot
Assets acquired:
Cash and cash equivalents		95
Inventories		6,556
Prepaid expenses		87
Property and equipment		68,065
Deferred income taxes		468
Operating lease right-of-use assets		27,432
Goodwill		153,936
Total assets		256,639
Liabilities assumed:
Accrued expenses		883
Operating lease liabilities		29,132
Total liabilities		$ 30,015