Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2026

Employee Benefit Plans [Abstract]

Schedule of Expenses Included on the Condensed Consolidated Statements of Income (Loss)

The expenses included on the condensed consolidated statements of income (loss) were as follows:

Three months ended June 30, 2026		Pension Plans												Other Post-employment Benefit Plans
Three months ended June 30, 2026		Canadian				US				Total				Canadian			US			Total
Consolidated statements of income (loss)
Operating expenses		$	896			$	73			$	969			$	157		$	—		$	157
Interest (income) expense		$	(773	)		$	(19	)		$	(792	)		$	280		$	10		$	290

Three months ended June 30, 2025		Pension Plans											Other Post-employment Benefit Plans
Three months ended June 30, 2025		Canadian				US			Total				Canadian			US			Total
Consolidated statements of income (loss)
Operating expenses		$	1,061			$	133		$	1,194			$	168		$	—		$	168
Interest (income) expense		$	(614	)		$	35		$	(579	)		$	264		$	47		$	311

Six months ended June 30, 2026		Pension Plans												Other Post-employment Benefit Plans
Six months ended June 30, 2026		Canadian				US				Total				Canadian			US			Total
Consolidated statements of income (loss)
Operating expenses		$	1,791			$	145			$	1,936			$	315		$	—		$	315
Interest (income) expense		$	(1,545	)		$	(39	)		$	(1,584	)		$	560		$	19		$	579

Six months ended June 30, 2025		Pension Plans											Other Post-employment Benefit Plans
Six months ended June 30, 2025		Canadian				US			Total				Canadian			US			Total
Consolidated statements of income (loss)
Operating expenses		$	2,122			$	271		$	2,393			$	335		$	—		$	335
Interest (income) expense		$	(1,232	)		$	71		$	(1,161	)		$	527		$	101		$	628

Schedule of Balance Sheet Obligations, Distributed Between Pension and Other Post-Employment Benefits

The balance sheet obligations, distributed between pension and other post-employment benefits were as follows:

As at June 30, 2026		Pension Plans										Other Post-employment Benefit Plans
As at June 30, 2026		Canadian			US				Total			Canadian			US			Total
Included in other long-term liabilities		$	42,618		$	(1,418	)		$	41,200		$	22,832		$	452		$	23,284
Included in other long-term assets		$	109,186		$	—			$	109,186		$	—		$	—		$	—

As at December 31, 2025		Pension Plans										Other Post-employment Benefit Plans
As at December 31, 2025		Canadian			US				Total			Canadian			US			Total
Included in other long-term liabilities		$	43,288		$	(952	)		$	42,336		$	22,400		$	424		$	22,824
Included in other long-term assets		$	109,812		$	—			$	109,812		$	—		$	—		$	—