Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details)

v3.6.0.2
Income Taxes (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Current: [Abstract]      
Federal $ 24,139 $ 8,319 $ 33,631
State 3,052 1,242 4,306
Current Income Tax Expense (Benefit) 27,191 9,561 37,937
Deferred: [Abstract]      
Federal 3,256 12,477 (2,102)
State 269 2,054 (919)
Deferred Income Tax Expense (Benefit) 3,525 14,531 (3,021)
Income tax expense (benefit) 30,716 24,092 34,916
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation $ 1,732 5,413 2,109
Income tax provision [Abstract]      
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate 35.00%    
Tax expense at the statutory rate $ 20,435 27,883 33,630
State income taxes, net of federal benefit 2,229 2,178 1,879
Non-deductible transaction costs   394  
Qualified stock options (88) (120) (96)
Meals and entertainment 474 216 186
Goodwill, Impairment Loss 25,686    
Deferred tax asset valuation allowance (2) (11) 39
Federal qualified property deductions (1,311) (6,066)  
Federal income tax credits   (732) (533)
Other (11) 350 (189)
Income tax expense (benefit) 30,716 24,092 34,916
Deferred Tax Liabilities and Assets [Abstract]      
Accrued expenses 9,647 11,952  
Allowance for doubtful accounts 662 936  
Share-based compensation 5,005 5,242  
Accruals for income tax contingencies 252 268  
Net operating loss carryforwards 10,231 13,620  
Total deferred tax assets 25,797 32,018  
Valuation allowance (282) (284)  
Total deferred tax assets, net of valuation allowance 25,515 31,734  
Tax over book depreciation 29,416 28,027  
Intangible assets 17,588 25,399  
Prepaid expenses deductible when paid 4,862 5,018  
Goodwill 15,520 13,166  
Deferred Tax Liabilities, Gross 67,386 71,610  
Net deferred tax liabilities (41,871) (39,876)  
Federal net operating loss 27,050 36,034  
Operating Loss Carryforwards, State and Local 18,155 23,595  
Balance sheet classification of deferred income taxes [Abstract]      
Deferred tax liabilites, noncurrent (41,871) (39,876)  
Income taxes paid 10,628 25,264 30,087
Increase (Decrease) in valuation allowance for state loss carryforwards 2 11  
Reconciliation of Unrecognized Tax Benefits [Roll Forward]      
Balance at beginning of year 773 771 1,339
Additions for tax positions of current year 56 66 66
Additions for tax positions of prior years     63
Reductions for settlement with state taxing authorities (247) (64) (697)
Balance at end of year 582 773 $ 771
Income tax penalties accrued 103 156  
Interest on income taxes accrued 184 $ 371  
TQI [Member]      
Income tax provision [Abstract]      
Goodwill, Impairment Loss $ 8,990