Environmental Rehabilitation Provision (Tables)

12 Months Ended

Dec. 31, 2022

Disclosure Of Environmental Rehabilitation Provision [Abstract]

Disclosure of environmental rehabilitation provision [Table Text Block]

	Year ended December 31,
		2022			2021
Environmental Rehabilitation Provision - beginning of period	$	53,369		$	51,750
Change in estimate		11,206			330
Liabilities discharged		(905	)		(645	)
Accretion expense		1,961			1,934
Environmental Rehabilitation Provision - end of period		65,631			53,369
Less current portion		(1,545	)		(1,050	)
Non-current portion	$	64,086		$	52,319