Property and Equipment and Leases Leases (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016 USD ($) locomotive rail_car	Dec. 31, 2015 USD ($) locomotive rail_car	Dec. 31, 2014 USD ($) locomotive rail_car
Operating Leased Assets [Line Items]
Leased railcars | rail_car						20,738	21,819	18,583
Leased locomotives | locomotive						309	333	162
Revenues from leased railroads as a percentage of total operating revenues						7.50%
Revenues from leased railroads subject to expiration in each of the next 10 years as a percentage of annual total operating revenues						2.00%
Equipment [Member]
Operating Leased Assets [Line Items]
Operating lease expense						$ 91,537	$ 91,919	$ 32,433
Real property [Member]
Operating Leased Assets [Line Items]
Operating lease expense						14,291	12,136	8,670
Trackage rights [Member]
Operating Leased Assets [Line Items]
Operating lease expense						$ 87,194	$ 78,140	$ 53,783
Scenario, Forecast [Member]
Operating Leased Assets [Line Items]
Revenues from leased railroads subject to expiration in each of the next 10 years as a percentage of annual total operating revenues	0.60%	0.00%	0.00%	1.40%	1.10%