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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2019
Income Tax Disclosure [Abstract] |
Components of Income (Loss) Before Taxes from Continuing Operations | The components of income (loss) before taxes from continuing operations consisted of the following for the years ended December 31 (in thousands):
| 2019 |  | 2018 |  | 2017
Domestic | $ | 79,619 |  |  | $ | 76,953 |  |  | $ | 78,468 |
Foreign | 5,144 |  |  | 2,992 |  |  | (560 | )
Income before taxes from continuing operations | $ | 84,763 |  |  | $ | 79,945 |  |  | $ | 77,908 |
Summary of Provision for Income Taxes for Continuing Operations | The provision for (benefit of) income taxes from continuing operations for the years ended December 31 consisted of the following (in thousands):
| 2019 |  | 2018 |  | 2017
Current: |  |  |  |  |
U.S. Federal | $ | 11,279 |  |  | $ | 9,402 |  |  | $ | 16,882 |
State | 3,551 |  |  | 3,144 |  |  | 2,479 |
Foreign | 1,539 |  |  | (1,191 | ) |  | 2,687 |
Total current | 16,369 |  |  | 11,355 |  |  | 22,048 |
Deferred: |  |  |  |  |
U.S. Federal | 2,917 |  |  | 4,158 |  |  | (7,466 | )
State | 509 |  |  | 1,047 |  |  | 1,246 |
Foreign | (123 | ) |  | (424 | ) |  | (885 | )
Total deferred | 3,303 |  |  | 4,781 |  |  | (7,105 | )
Provision for income taxes | $ | 19,672 |  |  | $ | 16,136 |  |  | $ | 14,943 |
(Benefit of) Provision for Income Taxes from Discontinued Operations | The benefit of income taxes from discontinued operations for the years ended December 31 consisted of the following (in thousands):
| 2019 |  | 2018 |  | 2017
Current: |  |  |  |  |
U.S. Federal | $ | — |  |  | $ | — |  |  | $ | 219 |
State | — |  |  | — |  |  | 20 |
Foreign | — |  |  | — |  |  | — |
Benefit of income taxes | $ | — |  |  | $ | — |  |  | $ | 239 |
Provision for Income Taxes from Continuing Operations Differs from the Federal Statutory Rate | The provision for income taxes from continuing operations differs from the federal statutory rate of 21% for the years ended December 31, 2019 and 2018 and 35% for the year ended December 31, 2017 due to the following (in thousands):
| 2019 |  | 2018 |  | 2017
Statutory rate | 17,800 |  |  | 21.0 | % |  | 16,788 |  |  | 21.0 | % |  | 27,268 |  |  | 35.0 | %
State taxes, less federal effect | 3,219 |  |  | 3.8 | % |  | 3,242 |  |  | 4.1 | % |  | 2,442 |  |  | 3.1 | %
Federal tax credits | (1,967 | ) |  | (2.3 | )% |  | (3,680 | ) |  | (4.6 | )% |  | (373 | ) |  | (0.5 | )%
Excess tax benefit on stock based compensation | (961 | ) |  | (1.1 | )% |  | (2,288 | ) |  | (2.9 | )% |  | (1,415 | ) |  | (1.8 | )%
Uncertain tax positions | (260 | ) |  | (0.3 | )% |  | (3,051 | ) |  | (3.8 | )% |  | (148 | ) |  | (0.2 | )%
Executive compensation | 1,132 |  |  | 1.3 | % |  | 1,369 |  |  | 1.7 | % |  | 160 |  |  | 0.2 | %
Change in valuation allowance | 88 |  |  | 0.1 | % |  | 844 |  |  | 1.1 | % |  | 660 |  |  | 0.8 | %
Net operating loss (NOL) write down | — |  |  | — | % |  | 1,640 |  |  | 2.1 | % |  | — |  |  | — | %
Change in Indemnification Asset | — |  |  | — | % |  | 643 |  |  | 0.8 | % |  | — |  |  | — | %
Tax effect of Tax Reform Act | — |  |  | — | % |  | — |  |  | — | % |  | (12,535 | ) |  | (16.1 | )%
Domestic manufacturer's deduction | — |  |  | — | % |  | — |  |  | — | % |  | (1,578 | ) |  | (2.0 | )%
Other | 621 |  |  | 0.7 | % |  | 629 |  |  | 0.7 | % |  | 462 |  |  | 0.7 | %
| $ | 19,672 |  |  | 23.2 | % |  | $ | 16,136 |  |  | 20.2 | % |  | $ | 14,943 |  |  | 19.2 | %
Deferred Tax Liabilities (Assets) | Deferred tax liabilities (assets) at December 31 consist of the following (in thousands):
| 2019 |  | 2018
Depreciation | $ | 10,421 |  |  | $ | 9,886 |
Goodwill | 38,540 |  |  | 35,813 |
Intangible assets | 9,610 |  |  | 9,907 |
Foreign withholding tax | 700 |  |  | 1,182 |
Other | 7,826 |  |  | 696 |
Gross deferred tax liabilities | 67,097 |  |  | 57,484 |
Equity compensation | (9,963 | ) |  | (10,420 | )
Other | (20,049 | ) |  | (13,529 | )
Gross deferred tax assets | (30,012 | ) |  | (23,949 | )
Valuation allowances | 3,160 |  |  | 2,995 |
Deferred tax assets, net of valuation allowances | (26,852 | ) |  | (20,954 | )
Net deferred tax liabilities | $ | 40,245 |  |  | $ | 36,530 |
Summary of Valuation Allowance | The following sets forth a reconciliation of the beginning and ending amount of the Company’s valuation allowance (in thousands):
| 2019 |  | 2018 |  | 2017
Balance as of January 1 | $ | 2,995 |  |  | $ | 2,242 |  |  | $ | 1,362 |
Cost charged to the tax provision | 173 |  |  | 2,597 |  |  | 1,505 |
Reductions | (10 | ) |  | (1,750 | ) |  | (820 | )
Currency translation | 2 |  |  | (94 | ) |  | 195 |
Balance as of December 31 | $ | 3,160 |  |  | $ | 2,995 |  |  | $ | 2,242 |
Interest (Net of Federal Tax Benefit) and Penalties Recognized | Interest (net of federal tax benefit) and penalties recognized during the years ended December 31 were (in thousands):
| 2019 |  | 2018 |  | 2017
Interest and penalties recognized as income | — |  |  | 13 |  |  | 130 |
Income Taxes Paid, Net of Tax Refunds | The Company made net payments for income taxes for the following amounts for the years ended December 31 (in thousands):
| 2019 |  | 2018 |  | 2017
Payments made for income taxes, net | $ | 19,065 |  |  | $ | 15,167 |  |  | $ | 26,186 |
Reconciliation of the Beginning and Ending Amount of Unrecognized Tax Benefits | A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands):
| 2019 |  | 2018 |  | 2017
Balance as of January 1 | $ | 329 |  |  | $ | 3,536 |  |  | $ | 3,466 |
Additions for tax positions of the current year | — |  |  | 15 |  |  | 99 |
Additions for tax positions of prior years | — |  |  | — |  |  | — |
Reductions for tax positions of prior years for: |  |  |  |  |
Settlements and changes in judgment | — |  |  | — |  |  | (422 | )
Lapses of applicable statute of limitations | (329 | ) |  | (3,060 | ) |  | — |
Divestitures and foreign currency translation | — |  |  | (162 | ) |  | 393 |
Balance as of December 31 | $ | — |  |  | $ | 329 |  |  | $ | 3,536 |

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