Goodwill and Intangible Assets, Net
 3 Months Ended
Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets, Net
Goodwill and Intangible Assets, Net
In July 2016, the Company revised its reportable segments and reporting units because of the changes to the way in which the chief operating decision maker regularly reviews information for purposes of allocating resources and assessing performance. Due to the change in organization structure, the Company expanded its reporting units from three to five. As a result, goodwill was reallocated to the new reporting units using a relative fair value approach. The indicated fair values substantially exceeded the carrying values of all reporting units. Goodwill has been restated to reflect the reallocation of goodwill based on the current reportable segments. Refer to Note 13 for further information.
Changes in goodwill for the three months ended September 30, 2016 were as follows:
 
Retail Solutions North America
 
Advertising North America
 
CDK International
 
Total
Balance as of June 30, 2016
$
604.7

 
$
214.3

 
$
363.7

 
$
1,182.7

Currency translation adjustments
(0.4
)
 
—

 
(3.0
)
 
(3.4
)
Balance as of September 30, 2016
$
604.3

 
$
214.3

 
$
360.7

 
$
1,179.3



Components of intangible assets, net were as follows:
 
September 30, 2016
 
June 30, 2016
 
Original Cost
 
Accumulated Amortization
 
Intangible Assets, net
 
Original Cost
 
Accumulated Amortization
 
Intangible Assets, net
Customer lists
$
175.5

 
$
(120.8
)
 
$
54.7

 
$
175.5

 
$
(117.5
)
 
$
58.0

Software
144.5

 
(100.4
)
 
44.1

 
141.0

 
(96.1
)
 
44.9

Trademarks
25.0

 
(23.6
)
 
1.4

 
25.0

 
(23.5
)
 
1.5

Other intangibles
6.5

 
(2.9
)
 
3.6

 
6.1

 
(2.7
)
 
3.4

 
$
351.5

 
$
(247.7
)
 
$
103.8

 
$
347.6

 
$
(239.8
)
 
$
107.8


Other intangibles consist primarily of purchased rights, covenants, and patents (acquired directly or through acquisitions). All of the intangible assets have finite lives and, as such, are subject to amortization. The weighted-average remaining useful life of intangible assets is 6 years (7 years for customer lists, 4 years for software and software licenses, and 3 years for trademarks). Amortization of intangible assets was $7.7 million and $6.5 million for the three months ended September 30, 2016 and 2015, respectively.
Estimated amortization expenses of the Company's existing intangible assets as of September 30, 2016 were as follows:
 
Amount
Nine months ending June 30, 2017
$
22.9

Twelve months ending June 30, 2018
25.6

Twelve months ending June 30, 2019
15.5

Twelve months ending June 30, 2020
9.9

Twelve months ending June 30, 2021
9.7

Twelve months ending June 30, 2022
7.5

Thereafter
12.7

 
$
103.8