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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2020
Income Tax Disclosure [Abstract] |
Schedule of Income (loss) Before Income Taxes | Income before income taxes consisted of the following:
Year Ended December 31, |  | 2020 |  |  | 2019 |  |  | 2018 |
|  | (In thousands) |
U.S. |  | $ | (1,029 | ) |  | $ | (1,472 | ) |  | $ | 4,634 |
Foreign |  |  | 40,117 |  |  |  | 25,109 |  |  |  | 39,497 |
Income before income taxes |  | $ | 39,088 |  |  | $ | 23,637 |  |  | $ | 44,131 |
Schedule of Provision for Income Taxes | The provision for income taxes consisted of the following:
Year Ended December 31, |  | 2020 |  |  | 2019 |  |  | 2018 |
|  | (In thousands) |
Current: |  |  |  |  |  |  |  |  |  |  |  |
U.S. federal and state |  | $ | 12,561 |  |  | $ | 1,546 |  |  | $ | 1,065 |
Foreign |  |  | 8,457 |  |  |  | 9,525 |  |  |  | 9,530 |
Deferred: |  |  |  |  |  |  |  |  |  |  |  |
U.S. federal and state |  |  | (8,870 | ) |  |  | 1,643 |  |  |  | 4,051 |
Foreign |  |  | (135 | ) |  |  | 1,397 |  |  |  | 3,896 |
Provision for income taxes |  | $ | 12,013 |  |  | $ | 14,111 |  |  | $ | 18,542 |
Schedule of Effective Income Tax Rate Reconciliation | The provision for income taxes is reconciled to the federal statutory income tax rate of 21% in 2020, 2019, and 2018, as follows:
Year Ended December 31, |  | 2020 |  |  | 2019 |  |  | 2018 |
|  | (In thousands) |
Federal income taxes at statutory rate |  | $ | 8,208 |  |  | $ | 4,964 |  |  | $ | 9,267 |
State income taxes, net of federal benefit |  |  | 325 |  |  |  | 505 |  |  |  | 2,685 |
Goodwill impairment |  |  | 2,322 |  |  |  | 1,883 |  |  |  | — |
Foreign taxes |  |  | 3,328 |  |  |  | 2,276 |  |  |  | 2,150 |
Change in valuation allowance |  |  | (374 | ) |  |  | 3,919 |  |  |  | 9,540 |
Research and development credits |  |  | (1,001 | ) |  |  | (626 | ) |  |  | (273 | )
Foreign tax credits |  |  | (1,150 | ) |  |  | (283 | ) |  |  | (429 | )
Nondeductible meals and entertainment |  |  | 377 |  |  |  | 724 |  |  |  | 782 |
US tax reform - revaluation of deferred taxes |  |  | — |  |  |  | — |  |  |  | 102 |
US tax reform - transition tax, net of credits |  |  | — |  |  |  | — |  |  |  | (3,496 | )
Change in permanent reinvestment assertion |  |  | 776 |  |  |  | — |  |  |  | (1,792 | )
Disposals and liquidations of businesses |  |  | (935 | ) |  |  | — |  |  |  | — |
Global intangible low-tax income, net of credits |  |  | (54 | ) |  |  | 892 |  |  |  | 454 |
Foreign-derived intangible income deduction |  |  | (115 | ) |  |  | (315 | ) |  |  | (323 | )
Tax rate changes |  |  | (359 | ) |  |  | 486 |  |  |  | (392 | )
Other |  |  | 665 |  |  |  | (314 | ) |  |  | 267 |
Provision for income taxes |  | $ | 12,013 |  |  | $ | 14,111 |  |  | $ | 18,542 |
Schedule of Deferred Tax Assets and Liabilities | Deferred income taxes consisted of the following at December 31, 2020 and 2019:
|  | 2020 |  |  | 2019 |
|  | (In thousands) |
Accounts receivable allowance |  | $ | 1,019 |  |  | $ | 1,163 |
Accrued compensation |  |  | 14,655 |  |  |  | 9,553 |
Accrued pension liabilities |  |  | 4,950 |  |  |  | 9,116 |
Self-insured risks |  |  | 5,746 |  |  |  | 4,301 |
Deferred revenues |  |  | 5,376 |  |  |  | 4,249 |
Interest |  |  | 2,419 |  |  |  | 5,399 |
Tax credit carryforwards |  |  | 7,090 |  |  |  | 11,634 |
Loss carryforwards |  |  | 22,805 |  |  |  | 25,523 |
Lease liability |  |  | 31,435 |  |  |  | 29,785 |
Other |  |  | 2,158 |  |  |  | 3,436 |
Gross deferred income tax assets |  |  | 97,653 |  |  |  | 104,159 |
Unbilled revenues |  |  | 5,311 |  |  |  | 6,522 |
Repatriated earnings |  |  | 776 |  |  |  | — |
Depreciation and amortization |  |  | 23,474 |  |  |  | 28,025 |
Lease right-of-use asset |  |  | 27,513 |  |  |  | 25,865 |
Gross deferred income tax liabilities |  |  | 57,074 |  |  |  | 60,412 |
Net deferred income tax assets before valuation allowance |  |  | 40,579 |  |  |  | 43,747 |
Valuation allowance |  |  | (16,579 | ) |  |  | (28,128 | )
Net deferred income tax assets |  | $ | 24,000 |  |  | $ | 15,619 |
Amounts recognized in the Consolidated Balance Sheets consist of: |  |  |  |  |  |  |  |
Long-term deferred income tax assets included in "Deferred income tax assets" |  |  | 25,595 |  |  |  | 17,971 |
Long-term deferred income tax liabilities included in "Other noncurrent liabilities" |  |  | (1,595 | ) |  |  | (2,352 | )
Net deferred income tax assets |  | $ | 24,000 |  |  | $ | 15,619 |
Summary of Valuation Allowance | Changes in the Company's deferred tax valuation allowance are recorded as adjustments to the provision for income taxes. An analysis of the Company's deferred tax asset valuation allowances is as follows for the years ended December 31, 2020, 2019, and 2018.
|  | 2020 |  |  | 2019 |  |  | 2018 |
|  | (In thousands) |
Balance, beginning of year |  | $ | 28,128 |  |  | $ | 25,864 |  |  | $ | 18,829 |
Other changes |  |  | (11,549 | ) |  |  | 2,264 |  |  |  | 7,035 |
Balance, end of year |  | $ | 16,579 |  |  | $ | 28,128 |  |  | $ | 25,864 |
Summary of Unrecognized Income Tax Benefits | A reconciliation of the beginning and ending balance of unrecognized income tax benefits follows:
|  | (In thousands) |
Balance at December 31, 2017 |  | $ | 11,297 |
Additions for tax provisions related to the current year |  |  | 54 |
Reductions for tax positions related to prior years |  |  | (3,941 | )
Currency translation adjustment |  |  | (9 | )
Balance at December 31, 2018 |  | $ | 7,401 |
Additions for tax provisions related to the current year |  |  | 515 |
Additions for tax positions related to prior years |  |  | 646 |
Reductions for tax positions related to prior years |  |  | (113 | )
Reductions for settlements |  |  | (2,642 | )
Lapses of applicable statutes of limitation |  |  | (520 | )
Balance at December 31, 2019 |  | $ | 5,287 |
Additions for tax provisions related to the current year |  |  | 92 |
Additions for tax positions related to prior years |  |  | 2 |
Reductions for tax positions related to prior years |  |  | (505 | )
Reductions for settlements |  |  | (516 | )
Lapses of applicable statutes of limitation |  |  | (582 | )
Balance at December 31, 2020 |  | $ | 3,778 |

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