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Intangible assets (Tables)

12 Months Ended

Dec. 31, 2020

Text block [abstract]

Summary of Reconciliation of Changes in Intangible Assets and Goodwill


						Other intangibles assets
						License and				Intangible
		Goodwill				software rights				in process				Total
Cost -
Balance at January 1, 2018		$	20,380			$	74,683			$	30,891			$	125,954
Additions			—				2,711				27,471				30,182
Disposals			—				—				—				—
Reclassifications			—				16,730				(16,730	)			—

Balance at December 31, 2018		$	20,380			$	94,124			$	41,632			$	156,136
Additions			—				8,503				16,962				25,465
Disposals			—				(86	)			—				(86	)
Reclassifications			—				40,660				(40,660	)			—

Balance at December 31, 2019		$	20,380			$	143,201			$	17,934			$	181,515
Additions			—				4,378				12,041				16,419
Disposals			—				(5,546	)			—				(5,546	)
Reclassifications			—				13,975				(13,975	)			—

Balance at December 31, 2020		$	20,380			$	156,008			$	16,000				192,388

Accumulated amortization and impairment -
Balance at January 1, 2018		$	—			$	(44,839	)		$	—			$	(44,839	)
Amortization for the year			—				(10,129	)			—				(10,129	)
Disposals			—				—				—				—

Balance at December 31, 2018		$	—			$	(54,968	)		$	—			$	(54,968	)
Amortization for the year			—				(18,437	)			—				(18,437	)
Disposals			—				6				—				6

Balance at December 31, 2019		$	—			$	(73,399	)		$	—			$	(73,399	)
Amortization for the year			—				(25,493	)			—				(25,493	)
Impairment			—				—				(1,020	)			(1,020	)
Disposals			—				3,092				—				3,092

Balance at December 31, 2020		$	—			$	(95,800	)		$	(1,020	)		$	(96,820	)

Carrying amounts -
At December 31, 2018		$	20,380			$	39,156			$	41,632			$	101,168

At December 31, 2019		$	20,380			$	69,802			$	17,934			$	108,116

At December 31, 2020		$	20,380			$	60,208			$	14,980			$	95,568