Software £m	Non compete agreements £m	Customer relationships £m	Total £m
Cost
At 1 January 2014	20.2	2.9	32.6	55.7
Exchange differences	(0.3)	–	1.4	1.1
Additions	4.1	–	–	4.1
Acquired on acquisition of subsidiaries	–	–	1.2	1.2
Disposals	(0.2)	–	–	(0.2)
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 subsidiaries	–	–	(1.0)	(1.0)
At 31 December 2015	28.8	2.9	35.0	66.7
Amortisation
At 1 January 2014	12.4	0.8	10.3	23.5
Exchange differences	(0.2)	–	0.3	0.1
Charge for the year	0.9	0.7	3.2	4.8
Disposals	(0.2)	–	–	(0.2)
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 subsidiaries	–	–	(1.0)	(1.0)
At 31 December 2015	13.3	2.3	15.9	31.5
Carrying amount
At 31 December 2015	15.5	0.6	19.1	35.2
At 31 December 2014	10.9	1.4	21.4	33.7