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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2020

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

The provision for income taxes by location of the taxing jurisdiction for the years ended December 31, 2020, 2019 and 2018 consisted of the following:

			2020						2019						2018
Current:
Federal			$	11,914					$	15,612					$	15,643
State			3,907						4,681						3,635
			15,821						20,293						19,278
Deferred:
Federal			922						5,766						6,826
State			(150)						1,323						764
			772						7,089						7,590
			$	16,593					$	27,382					$	26,868

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

A reconciliation of income taxes computed at the U.S. federal statutory income tax rate (21% for 2020, 2019 and 2018) to the provision for income taxes reflected in the Company’s Consolidated Statements of Comprehensive Income for the years ended December 31, 2020, 2019 and 2018 is as follows:

			2020						2019						2018
Tax expense at the statutory rate			$	14,566					$	23,038					$	24,241
State income taxes, net of federal income tax benefit			2,602						4,594						3,659
Share-based compensation			(298)						(587)						(50)
Other permanent differences			48						(5)						139
Non-deductible compensation			751						421						13
Change in income tax contingency reserves			(400)						—						—
Federal income tax credits			(37)						(83)						(186)
Other			(639)						4						(948)
			$	16,593					$	27,382					$	26,868

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

The significant components of the deferred tax assets and liabilities at December 31, 2020 and 2019 were as follows:

			December 31, 2020						December 31, 2019
Deferred tax assets:
Accrued expenses			$	12,095					$	7,245
Allowance for doubtful accounts			577						527
Operating lease liabilities			31,309						26,989
Share-based compensation			3,554						3,881
Accruals for income tax contingencies			166						185
Net operating loss carryforwards			671						1,089
Total gross deferred tax assets			48,372						39,916
Valuation allowance			(395)						(395)
Total net deferred tax assets			47,977						39,521
Deferred tax liabilities:
Tax over book depreciation			24,964						23,795
Prepaid expenses			6,499						4,043
Operating lease right-of-use assets			31,277						26,992
Goodwill			17,368						15,337
Intangible assets			9,855						10,568
Total deferred tax liabilities			89,963						80,735
Net deferred tax liabilities			$	(41,986)					$	(41,214)

Summary of Positions for which Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Table Text Block]

A reconciliation of the beginning and ending amount of unrecognized tax benefits as of and during the years ended December 31, 2020 and 2019 is as follows:

Balance at December 31, 2018			$	1,058
Reductions for settlement with state taxing authorities			(99)
Additions for tax positions of current year			28
Balance at December 31, 2019			987
Reductions for settlement with state taxing authorities			(466)
Additions for tax positions of current year			23
Balance at December 31, 2020			$	544

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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-Name Accounting Standards Codification
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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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Tabular disclosure of unrecognized tax benefits for which a material change is reasonably possible in the next twelve months, typically including the nature of the uncertainty, the event(s) that could cause a material change, and an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made. An unrecognized tax benefit is the difference between a tax position taken in a tax return and the amounts recognized in the financial statements for which it is more likely than not, based on the technical merits of the position, that the tax position will not be sustained upon examination.

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