Software £m	Non-compete agreements £m	Customer relationships £m	Total £m
Cost
At 1 January 2015	23.8	2.9	35.2	61.9
Exchange differences	(0.2)	–	0.8	0.6
Additions	5.6	–	–	5.6
Disposals	(0.4)	–	–	(0.4)
Derecognised on disposal of businesses	–	–	(1.0)	(1.0)
At 1 January 2016	28.8	2.9	35.0	66.7
Exchange differences	1.4	–	6.8	8.2
Additions	6.0	–	–	6.0
Acquired on acquisition of businesses (see note 25)	–	0.2	7.3	7.5
Disposals	(1.1)	–	–	(1.1)
At 31 December 2016	35.1	3.1	49.1	87.3
Amortisation
At 1 January 2015	12.9	1.5	13.8	28.2
Exchange differences	(0.2)	–	(0.2)	(0.4)
Charge for the year	0.9	0.8	3.3	5.0
Impairment loss	0.1	–	–	0.1
Disposals	(0.4)	–	–	(0.4)
Derecognised on disposal of businesses	–	–	(1.0)	(1.0)
At 1 January 2016	13.3	2.3	15.9	31.5
Exchange differences	1.2	–	3.5	4.7
Charge for the year	1.1	0.7	3.8	5.6
Impairment loss	0.1	–	–	0.1
Disposals	(0.4)	–	–	(0.4)
At 31 December 2016	15.3	3.0	23.2	41.5
Carrying amount
At 31 December 2016	19.8	0.1	25.9	45.8
At 31 December 2015	15.5	0.6	19.1	35.2