Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Jun. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Effective tax rate (percent)	4.90%		127.30%	(3.80%)	(71.20%)
Benefit from regulation changes	$ 3,000			$ 3,000
Income tax expense from surrender of life insurance policy		$ 12,000		12,000
Benefit from goodwill impairment				2,000
Goodwill impairment	0		$ 0	198,169	$ 0
Tax benefit from resolution of settlement				1,000	6,000
Deferred tax assets associated with the expiration of out-of-money vested stock options and the vesting of restricted stock				3,000
Valuation allowance released				23,000
Tax from Market Exits					2,000
Loss on sale of business	$ 0		$ 0	$ 0	$ 17,683
Percent decrease in unrecognized benefits, reasonably possible (up to)	10.00%			10.00%

Percent Decrease In Unrecognized Benefits is Reasonably Possible

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to the disposition of a business not qualifying as a discontinued operation.

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Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for award under share-based payment arrangement. Includes, but is not limited to, expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

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