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Retirement plans (Tables) | 12 Months Ended
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Dec. 31, 2019
Employee Benefits [Abstract] |
Weighted average duration of defined benefit obligation | 8 years
Disclosure of net defined benefit liability (asset) | Information concerning the Company’s defined benefit pension plans, in aggregate, is as follows:
As at | Dec 31 2019 |  | Dec 31 2018 |
Accrued benefit obligations: |  |
Balance, beginning of year | $ | 60,618 |  | $ | 65,393 |
Current service cost | 2,639 |  | 1,981 |
Past service cost | — |  | 1,279 |
Interest cost on accrued benefit obligations | 2,196 |  | 2,247 |
Benefit payments | (7,092 | ) | (3,558 | )
Actuarial (gain) loss | 8,041 |  | (652 | )
Foreign exchange (gain) loss | (341 | ) | (6,072 | )
Balance, end of year | 66,061 |  | 60,618 |
Fair values of plan assets: |  |
Balance, beginning of year | 40,955 |  | 46,991 |
Interest income on assets | 1,396 |  | 1,420 |
Contributions | 4,056 |  | 2,452 |
Benefit payments | (7,092 | ) | (3,558 | )
Return (loss) on plan assets | 2,500 |  | (2,846 | )
Foreign exchange gain (loss) | 2,076 |  | (3,504 | )
Balance, end of year | 43,891 |  | 40,955 |
Unfunded status | 22,170 |  | 19,663 |
Minimum funding requirement | — |  | — |
Defined benefit obligation, net | $ | 22,170 |  | $ | 19,663 |
Expense recognized in the income statement | The Company’s net defined benefit pension plan expense charged to the consolidated statements of income for the years ended December 31, 2019 and 2018 is as follows:
For the years ended December 31 | 2019 |  | 2018 |
Net defined benefit pension plan expense: |  |
Current service cost | $ | 2,639 |  | $ | 1,981 |
Past service cost | — |  | 1,279 |
Net interest cost | 800 |  | 827 |
Total net defined benefit pension plan expense | $ | 3,439 |  | $ | 4,087 |
Expense recognized in other comprehensive income | The Company’s current year actuarial losses, recognized in the consolidated statements of comprehensive income for the years ended December 31, 2019 and 2018, are as follows:
For the years ended December 31 | 2019 |  | 2018 |
Actuarial loss | $ | (4,479 | ) | $ | (1,483 | )
Disclosure of fair value of plan assets | The asset allocation for the defined benefit pension plan assets as at December 31, 2019 and 2018 is as follows:
As at | Dec 31 2019 |  | Dec 31 2018 |
Equity securities | 18 | % | 20 | %
Debt securities | 57 | % | 57 | %
Cash and other short-term securities | 25 | % | 23 | %
Total | 100 | % | 100 | %

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- Definition The disclosure of the fair value of defined benefit plan assets. [Refer: Plan assets [member]; Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 142 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_142&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The disclosure of a net defined benefit liability (asset). [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 140 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_140_a&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The weighted average duration of a defined benefit obligation. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 147 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_147_c&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition Disclosure Of Defined Benefit Plan Expense Recognized In Other Comprehensive Income Explanatory [Table Text Block] + References No definition available. + Details
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- Definition Disclosure Of Defined Benefit Plan Expense Recognized In Profit Or Loss Explanatory [Table Text Block] + References No definition available. + Details
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