Income Taxes - Narrative (Details) - USD ($)	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
Unusual or Infrequent Item, or Both [Line Items]
Income tax benefit	$ 1,020,000	$ (38,000)	$ (27,000)	$ 11,304,000	$ (220,000)	$ 309,000	$ (42,000)	$ (42,000)	$ 12,259,000	$ 5,000	$ (26,582,000)
Income tax receivable	10,045,000				18,000				10,045,000	18,000
Deferred employer tax payments	2,200,000								2,200,000
Operating Loss Carryforwards [Line Items]
Interest limitation carryforward	2,992,000				839,000				$ 2,992,000	$ 839,000
Federal statutory rate									21.00%	21.00%	21.00%
Valuation allowance	35,626,000				30,615,000				$ 35,626,000	$ 30,615,000
Deferred tax assets, operating loss carryforwards, federal	13,200,000				11,900,000				13,200,000	11,900,000
Deferred tax assets, operating loss carryforwards, state	4,000,000.0				3,100,000				4,000,000.0	3,100,000
Unrecognized tax benefits that, if recognized, would impact effective tax rate	0				600,000				0	600,000
Accrued interest related to unrecognized tax benefits	0				100,000				0	100,000	$ 100,000
Interest expense related to unrecognized tax benefits										100,000	$ 100,000
CARES Act
Unusual or Infrequent Item, or Both [Line Items]
Income tax benefit									11,300,000
Federal tax refund									1,200,000
Income tax receivable	10,100,000								10,100,000
Federal
Operating Loss Carryforwards [Line Items]
Income tax net operating loss carryforwards	62,700,000				68,500,000				62,700,000	68,500,000
State
Operating Loss Carryforwards [Line Items]
Income tax net operating loss carryforwards	$ 56,800,000				$ 49,300,000				$ 56,800,000	$ 49,300,000