Property, plant and equipment (Tables)

12 Months Ended

Dec. 31, 2017

Property, plant and equipment

Schedule of property plant and equipment

	Land and		Leasehold						Furniture		Computer
	buildings		improvements		Equipment		Satellites		and fixtures		hardware		Total
Cost
Balance as at December 31, 2015	$	191.0	$	31.7	$	232.2	$	—	$	7.4	$	43.9	$	506.2
Additions		3.0		15.2		15.3		—		1.9		6.2		41.6
Disposals		—		(0.2)		(0.6)		—		(0.1)		(1.8)		(2.7)
Foreign currency translation		0.4		0.5		0.7		—		0.2		0.9		2.7
Balance as at December 31, 2016		194.4		47.2		247.6		—		9.4		49.2		547.8
Acquired from business combination (note 9)		0.5		42.0		35.0		577.9		1.2		39.2		695.8
Additions		2.3		15.7		24.9		6.3		0.3		8.8		58.3
Disposals		—		(0.1)		(0.3)		—		—		(1.7)		(2.1)
Foreign currency translation		1.0		1.0		1.4		—		0.3		2.8		6.5
Balance as at December 31, 2017	$	198.2	$	105.8	$	308.6	$	584.2	$	11.2	$	98.3	$	1,306.3
Accumulated depreciation
Balance as at December 31, 2015	$	11.1	$	17.2	$	89.0	$	—	$	5.1	$	32.5	$	154.9
Depreciation expense		4.0		3.2		21.8		—		0.7		4.3		34.0
Disposals		—		(0.2)		(0.5)		—		(0.1)		(1.8)		(2.6)
Foreign currency translation		0.1		0.2		0.4		—		0.1		0.7		1.5
Balance as at December 31, 2016		15.2		20.4		110.7		—		5.8		35.7		187.8
Depreciation expense		4.3		4.2		22.9		21.8		0.8		7.1		61.1
Disposals		—		(0.1)		(0.2)		—		—		(1.7)		(2.0)
Foreign currency translation		0.3		0.7		1.4		—		0.2		1.9		4.5
Balance as at December 31, 2017	$	19.8	$	25.2	$	134.8	$	21.8	$	6.8	$	43.0	$	251.4
Net book value
December 31, 2017	$	178.4	$	80.6	$	173.8	$	562.4	$	4.4	$	55.3	$	1,054.9
December 31, 2016	$	179.2	$	26.8	$	136.9	$	—	$	3.6	$	13.5	$	360.0

Schedule of assets under finance leases

	December 31,		December 31,
	2017		2016
Computer hardware	$	5.2	$	4.6
Furniture and fixtures		7.2		0.1
	$	12.4	$	4.7

Satellites

Property, plant and equipment

Schedule of property plant and equipment

			Satellites
	Satellites		under
As at December 31, 2017	in-orbit		construction		Total
Cost	$	569.0	$	15.2	$	584.2
Accumulated depreciation		(21.8)		—		(21.8)
Net book value	$	547.2	$	15.2	$	562.4