Business Combinations - Narrative (Details) $ / shares in Units, $ in Thousands, $ in Thousands								3 Months Ended
	Mar. 01, 2021 USD ($)	Mar. 01, 2021 CAD ($)	Dec. 30, 2020 USD ($) shares	Nov. 02, 2020 USD ($)	Aug. 31, 2020 USD ($)	Jan. 02, 2020 USD ($)	Jan. 02, 2020 CAD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($) shares	Dec. 31, 2020 USD ($)	Dec. 29, 2020 $ / shares
Business Acquisition [Line Items]
Aggregate cash consideration								$ 41,956	$ 315,583
Goodwill								800,362		$ 794,335
Share price (in usd per share) | $ / shares											$ 36.15
Liberty Freezers
Business Acquisition [Line Items]
Aggregate cash consideration	$ 43,500	$ 55,000
Cash received	1,500	1,900
Land	2,900
Buildings and improvements	12,700
Machinery and equipment	7,900
Goodwill	14,100
Operating lease right-of-use assets	28,700
Deferred tax liability	9,000
Consideration for acquisition	43,500	$ 55,000
Nova Cold Logistics
Business Acquisition [Line Items]
Aggregate cash consideration						$ 260,600	$ 338,700
Cash received						1,000	$ 1,300
Land						34,800
Buildings and improvements						106,100
Machinery and equipment						30,600
Goodwill						64,600
Deferred tax liability						33,000
Newport Cold
Business Acquisition [Line Items]
Aggregate cash consideration						57,700
Cash received						1,000
Goodwill						7,100
Property, buildings and equipment						30,200
AM-C Warehouses
Business Acquisition [Line Items]
Aggregate cash consideration					$ 82,700
Goodwill					10,700
Property, buildings and equipment					53,200
Halls Warehouse Corporation
Business Acquisition [Line Items]
Aggregate cash consideration				$ 489,200
Cash received				7,900
Land				29,352
Machinery and equipment				63,596
Goodwill				42,737
Operating lease right-of-use assets				26,400
Deferred tax liability				5,012
Agro Merchants Group
Business Acquisition [Line Items]
Aggregate cash consideration			$ 1,080,000
Cash received			47,500
Land			95,286					95,286
Machinery and equipment			206,453					206,453
Goodwill			346,673					347,449
Operating lease right-of-use assets			191,229					191,229
Deferred tax liability			175,719					175,719
Consideration for acquisition			1,590,000
Deferred consideration			$ 49,700
Number of shares issued (in shares) | shares			14,166,667						46,100,000
Shares issued for acquisition			$ 512,100
Financing lease and sale-leaseback obligations			119,900
Consideration, including financing and sale-leaseback obligations			1,700,000
Revenue since date of acquisition								124,300
Net income since date of acquisition								4,500
Customer relationships | Liberty Freezers
Business Acquisition [Line Items]
Acquired identifiable intangible assets	$ 7,100
Weighted average remaining intangible amortization life (in months)	25 years	25 years
Customer relationships | Nova Cold Logistics
Business Acquisition [Line Items]
Acquired identifiable intangible assets						53,900
Weighted average remaining intangible amortization life (in months)	25 years	25 years
Customer relationships | Newport Cold
Business Acquisition [Line Items]
Acquired identifiable intangible assets						$ 18,700
Weighted average remaining intangible amortization life (in months)						25 years	25 years
Customer relationships | AM-C Warehouses
Business Acquisition [Line Items]
Acquired identifiable intangible assets					$ 19,700
Weighted average remaining intangible amortization life (in months)					25 years
Customer relationships | Halls Warehouse Corporation
Business Acquisition [Line Items]
Acquired identifiable intangible assets				$ 102,732
Weighted average remaining intangible amortization life (in months)				25 years
Customer relationships | Agro Merchants Group
Business Acquisition [Line Items]
Acquired identifiable intangible assets			$ 333,501					$ 333,501
Weighted average remaining intangible amortization life (in months)			25 years