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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES UPDATE (Narrative) (Details)
$ in Millions
3 Months Ended
Dec. 31, 2018
USD ($)
Cumulative Effect on Retained Earnings, Tax $ 5.5
Usg [Member]  
Percentage of segment revenues recognized when services are performed for unaffiliated customers or when products are delivered 80.00%
Percentage of consolidated revenues recognized when services are performed for unaffiliated customers or when products are delivered 24.00%
Percentage of segment revenues recorded under percentage of completion method 20.00%
Percentage of consolidated revenues recorded under percentage of completion method 6.00%
Filtration [Member]  
Percentage of segment revenues recognized when services are performed for unaffiliated customers or when products are delivered 48.00%
Percentage of consolidated revenues recognized when services are performed for unaffiliated customers or when products are delivered 18.00%
Percentage of segment revenues recorded under percentage of completion method 52.00%
Percentage of consolidated revenues recorded under percentage of completion method 19.00%
Test [Member]  
Percentage of segment revenues recognized when services are performed for unaffiliated customers or when products are delivered 25.00%
Percentage of consolidated revenues recognized when services are performed for unaffiliated customers or when products are delivered 6.00%
Percentage of segment revenues recorded under percentage of completion method 75.00%
Percentage of consolidated revenues recorded under percentage of completion method 17.00%
Technical Packaging [Member]  
Percentage of segment revenues recognized when services are performed for unaffiliated customers or when products are delivered 100.00%
Percentage of consolidated revenues recognized when services are performed for unaffiliated customers or when products are delivered 10.00%
Software Contract [Member]  
Percentage of segment revenues recognized when services are performed for unaffiliated customers or when products are delivered 8.00%
Percentage of consolidated revenues recognized when services are performed for unaffiliated customers or when products are delivered 2.00%