Annual report pursuant to Section 13 and 15(d)

Income Taxes - Deferred Tax Assets and Liabilities (Detail)

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Income Taxes - Deferred Tax Assets and Liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Deferred tax assets:    
Allowance for uncollectible accounts $ 8,181 $ 8,645
Accrued employee benefits 7,404 6,038
Stock compensation 2,037 2,322
Accrued self-insurance 6,688 8,656
Acquisition costs 1,569 1,413
Net operating loss carry forward 6,661 9,147
Intangible asset impairment 14 18
Lease payable 24,751 0
Other 332 1,021
Gross deferred tax assets 57,637 37,260
Less: valuation allowance (3,850) (3,574)
Net deferred tax assets 53,787 33,686
Deferred tax liabilities:    
Amortization of intangible assets (73,512) (64,001)
Tax depreciation in excess of book depreciation (9,247) (7,693)
Prepaid expenses (1,287) (1,134)
Non-accrual experience accounting method (1,468) (602)
Right of use asset (24,044) 0
Other (4,727) (3,562)
Deferred tax liabilities (114,285) (76,992)
Net deferred tax liability $ (60,498) $ (43,306)