Commitments And Contingencies (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) item	Dec. 31, 2018 USD ($) item	Dec. 31, 2017 USD ($)
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Number of outstanding letters of credit | item	1	1
Rental equipment payable	$ 25,137	$ 74,139	$ 92,415
Containers [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Commitments to purchase rental equipment	$ 6,000