Discontinued Operations - Narrative (Details) - Discontinued Operations - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Carrying value, held for sale						$ 91,800,000
Impairment expense	$ 0	$ 2,300,000	$ 0	$ 2,330,000
Capital expenditures				0	8,300,000
Finance lease additions				0	1,500,000
Proceeds from sales of assets				$ 40,500,000	$ 1,500,000