Sale-Leasebacks of Real Estate (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) warehouse	Dec. 31, 2018 USD ($)	Jul. 31, 2013 warehouse	Sep. 30, 2010 USD ($)	Sep. 30, 2007 warehouse
Sale Leaseback Transaction [Line Items]
Total sale-leaseback financing obligations	$ 115,759	$ 118,920
1 warehouse – 2010
Sale Leaseback Transaction [Line Items]
Number of warehouses | warehouse	1
Interest Rate as of December 31, 2019	10.34%
Total sale-leaseback financing obligations	$ 18,994	19,265		$ 18,200
11 warehouses – 2007
Sale Leaseback Transaction [Line Items]
Number of warehouses | warehouse	11		11		11
Total sale-leaseback financing obligations	$ 96,765	$ 99,655
11 warehouses – 2007 | Minimum
Sale Leaseback Transaction [Line Items]
Interest Rate as of December 31, 2019	7.00%
11 warehouses – 2007 | Maximum
Sale Leaseback Transaction [Line Items]
Interest Rate as of December 31, 2019	19.59%