Discontinued Operations - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from the sale of assets									$ 5,529	$ 1,033	$ 577
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 5,693	0	5,693	550
Cash provided by (used in) operating activities, discontinued operations									0	0	(2,690)
Cash provided by (used in) investing activities, discontinued operations									0	0	$ (28,470)
Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from the sale of assets									4,500
Gain (loss) on the sale of Manquiri royalty									$ 400
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent										$ 5,700