Business Combinations - Narrative (Details) $ in Thousands, $ in Millions				3 Months Ended	6 Months Ended		14 Months Ended
	Jan. 02, 2020 USD ($)	Jan. 02, 2020 CAD ($)	May 01, 2019 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Business Acquisition [Line Items]
Goodwill				$ 385,285	$ 385,285	$ 385,285	$ 385,285	$ 318,483
Nova Cold Logistics
Business Acquisition [Line Items]
Aggregate cash consideration	$ 259,600	$ 337.4
Property, buildings and equipment				171,900	171,900	171,900	171,900
Deferred tax liability	42,000			34,500	34,500	34,500	34,500
Goodwill				60,400	60,400	60,400	60,400
Deferred tax liability, change				7,500		7,500
Newport Cold
Business Acquisition [Line Items]
Aggregate cash consideration	56,100
Property, buildings and equipment	30,200
Goodwill	6,500
Cloverleaf
Business Acquisition [Line Items]
Aggregate cash consideration			$ 1,240,000
Deferred tax liability			9,063	9,024	9,024	9,024	9,024	8,900
Goodwill			107,643	126,096	126,096	126,096	126,096
Deferred tax liability, change							(39)
Deferred tax liability, intangible assets				1,900	1,900	1,900	1,900
Lanier Cold Storage
Business Acquisition [Line Items]
Aggregate cash consideration			81,900
Property, buildings and equipment			60,000
Deferred tax liability								$ 700
Goodwill			6,400
Customer relationships | Nova Cold Logistics
Business Acquisition [Line Items]
Identifiable intangibles				59,600	$ 59,600	59,600	59,600
Weighted average remaining intangible amortization life (in months)					25 years
Customer relationships | Newport Cold
Business Acquisition [Line Items]
Identifiable intangibles	$ 18,700
Weighted average remaining intangible amortization life (in months)	25 years	25 years
Customer relationships | Cloverleaf
Business Acquisition [Line Items]
Identifiable intangibles			241,738	250,346	$ 250,346	250,346	250,346
Weighted average remaining intangible amortization life (in months)					25 years
Customer relationships | Lanier Cold Storage
Business Acquisition [Line Items]
Identifiable intangibles			$ 16,300
Weighted average remaining intangible amortization life (in months)			25 years
Trade names and trademarks | Cloverleaf
Business Acquisition [Line Items]
Identifiable intangibles			$ 1,623	$ 1,623	$ 1,623	$ 1,623	$ 1,623
Weighted average remaining intangible amortization life (in months)					1 year 6 months