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Postretirement Benefit Plans (Tables) | 12 Months Ended
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Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items] |
Obligations and Funded Status | Obligations and Funded Status at December 31
(In thousands) |  | United States |  |  | United Kingdom |
|  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Change in benefit obligation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Benefit obligation at beginning of year |  | $ | 176,499 |  |  | $ | 158,594 |  |  | $ | 21,850 |  |  | $ | 20,006 |
Interest cost |  |  | 5,668 |  |  |  | 6,616 |  |  |  | 445 |  |  |  | 554 |
Actuarial loss |  |  | 13,327 |  |  |  | 19,251 |  |  |  | 3,032 |  |  |  | 1,045 |
Benefits paid |  |  | (8,123 | ) |  |  | (7,962 | ) |  |  | (657 | ) |  |  | (592 | )
Foreign exchange impact |  |  | — |  |  |  | — |  |  |  | 856 |  |  |  | 837 |
Benefit obligation at end of year |  | $ | 187,371 |  |  | $ | 176,499 |  |  | $ | 25,526 |  |  | $ | 21,850 |
(In thousands) |  | United States |  |  | United Kingdom |
|  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Change in plan assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of plan assets at beginning of year |  | $ | 160,423 |  |  | $ | 134,198 |  |  | $ | 24,357 |  |  | $ | 20,576 |
Actual return on plan assets |  |  | 22,738 |  |  |  | 33,875 |  |  |  | 3,320 |  |  |  | 2,963 |
Employer contributions |  |  | 298 |  |  |  | 312 |  |  |  | 526 |  |  |  | 476 |
Benefits paid |  |  | (8,123 | ) |  |  | (7,962 | ) |  |  | (657 | ) |  |  | (592 | )
Foreign exchange impact |  |  | — |  |  |  | — |  |  |  | 958 |  |  |  | 934 |
Fair value of plan assets at end of year |  | $ | 175,336 |  |  | $ | 160,423 |  |  | $ | 28,504 |  |  | $ | 24,357 |
Over (Under) funded status at end of year |  | $ | (12,035 | ) |  | $ | (16,076 | ) |  | $ | 2,978 |  |  | $ | 2,507 |
Schedule of Amounts Recognized in Balance Sheets | The amounts recognized in the consolidated balance sheets at December 31 consisted of:
(In thousands) |  | United States |  |  | United Kingdom |
|  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Non-current asset |  | $ | 3,470 |  |  | $ | 1,479 |  |  | $ | 2,978 |  |  | $ | 2,507 |
Current liability |  |  | (288 | ) |  |  | (301 | ) |  |  | — |  |  |  | — |
Non-current liability |  |  | (15,217 | ) |  |  | (17,254 | ) |  |  | — |  |  |  | — |
Net amount recognized |  | $ | (12,035 | ) |  | $ | (16,076 | ) |  | $ | 2,978 |  |  | $ | 2,507 |
Amounts Recognized in Accumulated Other Comprehensive Income | The amounts recognized in accumulated other comprehensive income at December 31 consisted of:
(In thousands) |  | United States |  |  | United Kingdom |
|  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Net actuarial loss |  | $ | 33,745 |  |  | $ | 37,671 |  |  | $ | 4,653 |  |  | $ | 4,460 |
Information for Pension Plans with Projected Benefit Obligations in Excess of Plan Assets | Below is information for pension plans with projected benefit obligations in excess of plan assets at December 31:
(In thousands) |  | United States |  |  | United Kingdom |
|  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Projected benefit obligation |  | $ | 146,848 |  |  | $ | 141,839 |  |  | $ | — |  |  | $ | — |
Accumulated benefit obligation |  |  | 146,848 |  |  |  | 141,839 |  |  |  | — |  |  |  | — |
Fair value of plan assets |  |  | 135,070 |  |  |  | 124,284 |  |  |  | — |  |  |  | — |
Components of Net Periodic Benefit Cost | Net periodic benefit costs for the years ended December 31, 2020, 2019 and 2018, were as follows:
(In thousands) |  | United States |  |  | United Kingdom |
|  | 2020 |  |  | 2019 |  |  | 2018 |  |  | 2020 |  |  | 2019 |  |  | 2018 |
Interest cost |  | $ | 5,668 |  |  | $ | 6,616 |  |  | $ | 6,194 |  |  | $ | 445 |  |  | $ | 554 |  |  | $ | 565 |
Expected return on plan assets |  |  | (9,747 | ) |  |  | (9,450 | ) |  |  | (9,284 | ) |  |  | (548 | ) |  |  | (787 | ) |  |  | (885 | )
Amortization of net actuarial loss |  |  | 4,262 |  |  |  | 2,490 |  |  |  | 3,814 |  |  |  | 79 |  |  |  | 244 |  |  |  | 219 |
Net periodic benefit cost |  | $ | 183 |  |  | $ | (344 | ) |  | $ | 724 |  |  | $ | (24 | ) |  | $ | 11 |  |  | $ | (101 | )
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income | Other changes in plan assets and benefit obligations recognized in other comprehensive income for the years ended December 31, 2020, 2019 and 2018, were as follows:
(In thousands) |  | United States |  |  | United Kingdom |
|  | 2020 |  |  | 2019 |  |  | 2018 |  |  | 2020 |  |  | 2019 |  |  | 2018 |
Net actuarial (gain) loss |  | $ | 336 |  |  | $ | (5,174 | ) |  | $ | 9,348 |  |  | $ | 272 |  |  | $ | (1,144 | ) |  | $ | 325 |
Amortization of net actuarial loss |  |  | (4,262 | ) |  |  | (2,490 | ) |  |  | (3,814 | ) |  |  | (79 | ) |  |  | (244 | ) |  |  | (219 | )
Total recognized in other comprehensive income |  | $ | (3,926 | ) |  | $ | (7,664 | ) |  | $ | 5,534 |  |  | $ | 193 |  |  | $ | (1,388 | ) |  | $ | 106 |
Total recognized in net periodic benefit cost and other comprehensive income |  | $ | (3,743 | ) |  | $ | (8,008 | ) |  | $ | 6,258 |  |  | $ | 169 |  |  | $ | (1,377 | ) |  | $ | 5 |
Estimated Future Benefit Payments | Estimated Future Benefit Payments
(In thousands) |  | United States |  |  | United Kingdom |
2021 |  | $ | 8,744 |  |  | $ | 535 |
2022 |  |  | 9,118 |  |  |  | 557 |
2023 |  |  | 9,505 |  |  |  | 600 |
2024 |  |  | 9,820 |  |  |  | 631 |
2025 |  |  | 10,033 |  |  |  | 659 |
2026-2030 |  |  | 51,138 |  |  |  | 3,893 |
Defined Contribution Expenses for Company's Qualified Defined Contribution Plans and Statutory Profit Sharing Contributions | Defined contribution expenses for the Company’s qualified defined contribution plans and statutory profit sharing contributions were as follows:
(In thousands) |  | 2020 |  |  | 2019 |  |  | 2018 |
Retirement contributions |  | $ | 8,035 |  |  | $ | 7,328 |  |  | $ | 7,617 |
Profit sharing contributions |  |  | 6,107 |  |  |  | 4,702 |  |  |  | 4,182 |
Total |  | $ | 14,142 |  |  | $ | 12,030 |  |  | $ | 11,799 |
United States [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Company's Asset Allocations for its U.S. and U.K Pension Plans | The Company’s asset allocations for its U.S. pension plans at December 31, 2020 and 2019, by asset category, were as follows:
|  | December 31, 2020 |
(In thousands) |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Cash and Cash Equivalents |  | $ | 7,056 |  |  | $ | — |  |  | $ | — |  |  | $ | 7,056 |
Equity Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Equities |  |  | 54,805 |  |  |  | — |  |  |  | — |  |  |  | 54,805 |
Non-U.S. Equities |  |  | 23,155 |  |  |  | — |  |  |  | — |  |  |  | 23,155 |
Employer Securities |  |  | 27,938 |  |  |  | — |  |  |  | — |  |  |  | 27,938 |
Total Equities |  |  | 105,898 |  |  |  | — |  |  |  | — |  |  |  | 105,898 |
Fixed Income Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Corporate Bonds |  |  | — |  |  |  | 41,489 |  |  |  | — |  |  |  | 41,489 |
U.S. Government and Agency Bonds |  |  | 11,152 |  |  |  | 1,570 |  |  |  | — |  |  |  | 12,722 |
Other Bonds |  |  | — |  |  |  | 8,171 |  |  |  | — |  |  |  | 8,171 |
Total Fixed Income |  |  | 11,152 |  |  |  | 51,230 |  |  |  | — |  |  |  | 62,382 |
Total |  | $ | 124,106 |  |  | $ | 51,230 |  |  | $ | — |  |  | $ | 175,336 |
|  | December 31, 2019 |
(In thousands) |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Cash and Cash Equivalents |  | $ | 7,261 |  |  | $ | — |  |  | $ | — |  |  | $ | 7,261 |
Equity Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Equities |  |  | 50,319 |  |  |  | — |  |  |  | — |  |  |  | 50,319 |
Non-U.S. Equities |  |  | 19,697 |  |  |  | — |  |  |  | — |  |  |  | 19,697 |
Employer Securities |  |  | 27,234 |  |  |  | — |  |  |  | — |  |  |  | 27,234 |
Total Equities |  |  | 97,250 |  |  |  | — |  |  |  | — |  |  |  | 97,250 |
Fixed Income Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Corporate Bonds |  |  | — |  |  |  | 36,242 |  |  |  | — |  |  |  | 36,242 |
U.S. Government and Agency Bonds |  |  | 11,080 |  |  |  | — |  |  |  | — |  |  |  | 11,080 |
Other Bonds |  |  | — |  |  |  | 8,590 |  |  |  | — |  |  |  | 8,590 |
Total Fixed Income |  |  | 11,080 |  |  |  | 44,832 |  |  |  | — |  |  |  | 55,912 |
Total |  | $ | 115,591 |  |  | $ | 44,832 |  |  | $ | — |  |  | $ | 160,423 |
United Kingdom [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Company's Asset Allocations for its U.S. and U.K Pension Plans | The Company’s asset allocations for its U.K. pension plans at December 31, 2020 and 2019, by asset category, were as follows:
|  | December 31, 2020 |
(In thousands) |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Cash |  |  | — |  |  | $ | 2,576 |  |  | $ | — |  |  | $ | 2,576 |
Equity Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pooled Pension Funds |  |  | — |  |  |  | 3,603 |  |  |  | — |  |  |  | 3,603 |
Fixed Income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pooled Pension Funds |  |  | — |  |  |  | 21,166 |  |  |  | — |  |  |  | 21,166 |
Insurance Contracts |  |  | — |  |  |  | — |  |  |  | 1,159 |  |  |  | 1,159 |
Total |  | $ | — |  |  | $ | 27,345 |  |  | $ | 1,159 |  |  | $ | 28,504 |
|  | December 31, 2019 |
(In thousands) |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Cash |  | $ | 252 |  |  | $ | 1,120 |  |  | $ | — |  |  | $ | 1,372 |
Equity Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pooled Pension Funds |  |  | — |  |  |  | 7,533 |  |  |  | — |  |  |  | 7,533 |
Fixed Income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pooled Pension Funds |  |  | — |  |  |  | 14,247 |  |  |  | — |  |  |  | 14,247 |
Insurance Contracts |  |  | — |  |  |  | — |  |  |  | 1,205 |  |  |  | 1,205 |
Total |  | $ | 252 |  |  | $ | 22,900 |  |  | $ | 1,205 |  |  | $ | 24,357 |
Fair Value Changes within Asset Categories for which Fair Value Measurements Use Significant Unobservable Inputs (Level 3) Defined Benefit United States Plans and United Kingdom Plans | Fair value changes within asset categories for which fair value measurements use significant unobservable inputs (Level 3) were as follows during 2020 and 2019:
(In thousands) |  | Insurance Contracts |
Fair value, December 31, 2018 |  | $ | 1,243 |
Sale proceeds (benefit payments) |  |  | (121 | )
Change in unrealized gain |  |  | 37 |
Foreign exchange impact |  |  | 46 |
Fair value, December 31, 2019 |  | $ | 1,205 |
Sale proceeds (benefit payments) |  |  | (119 | )
Change in unrealized gain |  |  | 41 |
Foreign exchange impact |  |  | 32 |
Fair value, December 31, 2020 |  | $ | 1,159 |
Defined Benefit Plan Periodic Costs [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Weighted-Average Assumptions Used to Determine Benefit Obligations/Net Periodic Benefit Costs | The weighted-average assumptions used to determine net periodic benefit costs for years ended December 31 were as follows:
|  | United States |  |  | United Kingdom |
|  | 2020 |  |  | 2019 |  |  | 2018 |  |  | 2020 |  |  | 2019 |  |  | 2018 |
Discount rate |  |  | 3.30 | % |  |  | 4.30 | % |  |  | 3.67 | % |  |  | 2.10 | % |  |  | 2.80 | % |  |  | 2.40 | %
Expected long-term return on plan assets |  |  | 6.75 | % |  |  | 6.75 | % |  |  | 6.75 | % |  |  | 2.30 | % |  |  | 3.82 | % |  |  | 3.71 | %
Benefit Obligation [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Weighted-Average Assumptions Used to Determine Benefit Obligations/Net Periodic Benefit Costs | The weighted-average assumptions used to determine benefit obligations at December 31 were as follows:
|  | United States |  |  | United Kingdom |
|  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Discount rate |  |  | 2.60 | % |  |  | 3.30 | % |  |  | 1.40 | % |  |  | 2.10 | %

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