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Federal Income Tax Receivable (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Mar. 31, 2020	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Federal income tax receivable	$ 11,083	$ 15,000	$ 11,083		$ 0
Deferred tax liability increase due to tax law change		$ 10,100	10,103	$ 0
Income tax received refunds	$ 3,900
Income tax benefit from CARES Act			$ 4,900

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- Definition

Coronavirus Aid, Relief, And Economic Security (CARES) Act, Income Tax Expense (Benefit)

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Increase (Decrease) In Deferred Income Tax Liabilities Due To Change In Tax Law

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Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.

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The amount of cash received during the period as refunds for the overpayment of taxes.

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