Income Taxes (Tables)

12 Months Ended

Dec. 31, 2020

Income Taxes

Schedule of components of income tax expense (benefit)

	2018		2019		2020
Income taxes currently payable:
Federal	$	8,918	$	2,051	$	(31,567)
State		3,241		27		(5,238)
		12,159		2,078		(36,805)
Deferred income taxes (benefits):
Federal		(912)		5,378		(5,903)
State		210		1,706		(1,823)
		(702)		7,084		(7,726)
Total income tax expense (benefit)	$	11,457	$	9,162	$	(44,531)

Schedule of differences between total income tax expense and amount computed using the statutory federal income tax rate

	2018		2019		2020
Income tax expense (benefit) at federal statutory rate	$	7,063	$	4,569	$	(8,501)
State income taxes (benefit), net of federal income tax benefit		3,407		1,285		(1,632)
State contingencies added		2,287		944		1,519
Tax contingencies reversed due to statute closings		(2,500)		(2,860)		(1,762)
Change in valuation allowances		(691)		584		(924)
Share-based compensation		(4,750)		1,715		2,982
Qualified research credit		(1,584)		(1,418)		(2,424)
Non-deductible executive compensation		3,052		3,153		2,717
Non-deductible HIF fees		3,236		—		3,263
Sale of MCC Business		—		—		(39,819)
Other-net		1,937		1,190		50
Total income tax expense	$	11,457	$	9,162	$	(44,531)

Schedule of components of deferred tax assets and liabilities

	2019		2020
Deferred tax assets:
Net operating loss carryforwards	$	3,824	$	3,760
Share-based compensation		9,167		4,365
Other accrued compensation		10,697		17,037
Claims reserves		5,355		2,241
Deferred revenue		4,122		4,491
Accrued severance		1,244		3,505
Other non-deductible accrued liabilities		1,210		1,224
Indirect tax benefits		1,867		2,247
Operating lease--right-of-use liabilities		18,603		13,564
Other deferred tax assets		111		1,962
Total deferred tax assets		56,200		54,396
Valuation allowances		(1,828)		(905)
Deferred tax assets after valuation allowances		54,372		53,491
Deferred tax liabilities:
Depreciation		(20,479)		(29,967)
Amortization of goodwill and intangible assets		(12,569)		(15,670)
Operating lease--right-of-use assets		(15,893)		(7,091)
Other deferred tax liabilities		(5,562)		(6,023)
Total deferred tax liabilities		(54,503)		(58,751)
Net deferred tax liabilities from continued operations	$	(131)	$	(5,260)

Schedule of reconciliation of the beginning and ending amount of gross unrecognized tax benefits

	2018		2019		2020
Balance as of beginning of period	$	10,411	$	10,823	$	9,010
Additions for current year tax positions		2,925		1,180		3,316
Additions for tax positions of prior years		397		699		29
Reductions for tax positions of prior years		(44)		(472)		(85)
Reductions due to lapses of applicable statutes of limitations		(2,906)		(3,177)		(1,826)
Changes due to Tax Act		339		—		—
Reductions due to settlements with taxing authorities		(299)		(43)		—
Balance as of end of period	$	10,823	$	9,010	$	10,444