Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands			3 Months Ended
	Nov. 21, 2019	Feb. 01, 2019	Mar. 31, 2020	Mar. 31, 2019	Jan. 01, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Impairment of long-lived assets			$ 0	$ 12,555
Interest capitalized			800	800
Compensation and travel expense capitalized			100	200
Payments for asset acquisitions			0	35,923
Equity			2,020,676	680,477		$ 1,833,018	$ 706,755
Accounts receivable – net of allowance			7,426			6,927
Port Fresh Holdings, LLC
Property, Plant and Equipment [Line Items]
Payments for asset acquisitions		$ 35,200
MHW Group Inc.
Property, Plant and Equipment [Line Items]
Payments for asset acquisitions		50,800
Property, plant and equipment	$ 50,100
Intangible assets		600
Other assets (liabilities), net		100
Call option to purchase land		$ 4,100
Partially Used Warehouse
Property, Plant and Equipment [Line Items]
Impairment of long-lived assets			$ 9,600
Percentage of facility to be demolished			75.00%
Idle Warehouse
Property, Plant and Equipment [Line Items]
Impairment of long-lived assets			$ 2,900
Retained Earnings
Property, Plant and Equipment [Line Items]
Equity			(756,418)	$ (673,297)		$ (736,861)	$ (638,345)
Accounting Standards Update 2016-13
Property, Plant and Equipment [Line Items]
Assets under new accounting pronouncement			$ 536,800
Accounting Standards Update 2016-13 | Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment
Property, Plant and Equipment [Line Items]
Equity					$ 500