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Retirement Plans (Tables) | 3 Months Ended
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Mar. 31, 2018
Defined Benefit Plan Disclosure |
Schedule of Costs of Retirement Plans | The following table summarizes the expense associated with the contributions made to these plans.
|  | Three Months Ended March 31,
|  | 2018 |  | 2017
United States |  | $ | 544 |  |  | $ | 451 |
Canada |  | 33 |  |  | 59 |
United Kingdom |  | 117 |  |  | 115 |
|  | $ | 694 |  |  | $ | 625 |
Pension Plan | United States |
Defined Benefit Plan Disclosure |
Schedule of Net Benefit Costs | Net periodic pension costs for the United States defined benefit pension plan for the three-month periods ended March 31, 2018 and 2017 are as follows:
|  | Three Months Ended March 31,
|  | 2018 |  | 2017
Interest cost |  | $ | 155 |  |  | $ | 171 |
Expected return on plan assets |  | (213 | ) |  | (178 | )
Recognized net actuarial loss |  | 24 |  |  | 33 |
Net periodic pension (income) cost |  | $ | (34 | ) |  | $ | 26 |
Pension Plan | Foreign Plan |
Defined Benefit Plan Disclosure |
Schedule of Net Benefit Costs | Net periodic pension costs for the United Kingdom defined benefit pension plan for the three-month periods ended March 31, 2018 and 2017 are as follows:
|  | Three Months Ended March 31,
|  | 2018 |  | 2017
Interest cost |  | $ | 53 |  |  | $ | 55 |
Expected return on plan assets |  | (72 | ) |  | (65 | )
Amortization of prior service costs and transition amount |  | 5 |  |  | 4 |
Recognized net actuarial loss |  | 49 |  |  | 69 |
Net periodic pension cost |  | $ | 35 |  |  | $ | 63 |

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- Definition Tabular disclosure of the costs related to the various types of retirement plans including defined benefit pension plan cost, defined contribution plan cost, other postretirement benefit plan cost, and net periodic benefit cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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