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Intangible Assets
 9 Months Ended
Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets INTANGIBLE ASSETS
The table below provides details of acquired intangible assets:
 
30 June 2018
 
30 September 2017
 
Gross

Accumulated
Amortization/
Impairment

Net

 
Gross

Accumulated
Amortization/
Impairment

Net

Customer relationships

$497.6


($158.2
)

$339.4

 

$424.1


($142.3
)

$281.8

Patents and technology
34.1

(11.3
)
22.8

 
13.4

(10.6
)
2.8

Other
71.5

(33.8
)
37.7

 
73.4

(36.6
)
36.8

Total finite-lived intangible assets
603.2

(203.3
)
399.9

 
510.9

(189.5
)
321.4

Trade names and trademarks, indefinite-lived
62.7

(13.6
)
49.1

 
67.8

(20.9
)
46.9

Total Intangible Assets

$665.9


($216.9
)

$449.0

 

$578.7


($210.4
)

$368.3


Indefinite-lived intangible assets are subject to impairment testing at least annually or more frequently if events or changes in circumstances indicate that potential impairment exists. The impairment test for indefinite-lived intangible assets involves calculating the fair value of the indefinite-lived intangible assets and comparing the fair value to their carrying value. If the fair value is less than the carrying value, the difference is recorded as an impairment loss.
During the third quarter of fiscal year 2017, we recorded a noncash impairment charge of $16.8 to write down the trade names and trademarks associated with LASA within the Industrial Gases – Americas segment. The impairment charge is reflected on our consolidated income statements within “Goodwill and intangible asset impairment charge” for the three and nine months ended 30 June 2017. This charge has been excluded from segment operating income.
As discussed in Note 9, Goodwill, LASA includes assets and goodwill associated with operations in Chile and other Latin American countries. The decline in value resulted from lowered long-term growth projections reflecting weak economic conditions in Latin America and expectations for continued volume weakness in the Latin American countries and markets in which we operate. We estimated the fair value of the indefinite-lived intangibles associated with LASA utilizing the royalty savings method, a form of the income approach.
We tested the recoverability of LASA long-lived assets, including finite-lived intangible assets subject to amortization, and concluded that they were recoverable from expected future undiscounted cash flows.