Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Asbestos - Numbers of Open Claims, New Claims and Closed Claims and Average Settlement Per Settled Claim and Case Closed (Details)

v3.21.1
Asbestos - Numbers of Open Claims, New Claims and Closed Claims and Average Settlement Per Settled Claim and Case Closed (Details)
 12 Months Ended
Mar. 31, 2021
AUD ($)
claim
Mar. 31, 2020
AUD ($)
claim
Mar. 31, 2019
AUD ($)
claim
Mar. 31, 2018
AUD ($)
claim
Mar. 31, 2017
AUD ($)
claim
Mar. 31, 2021
USD ($)
Mar. 31, 2020
USD ($)
Mar. 31, 2019
USD ($)
Mar. 31, 2018
USD ($)
Mar. 31, 2017
USD ($)
Loss Contingency, Pending Claims, Number [Roll Forward]                    
Number of open claims at beginning of period 393 332 336 352 426          
Number of new claims, direct claims 392 449 430 422 402          
Number of new claims, cross claims 153 208 138 140 155          
Number of closed claims 578 596 572 578 631          
Number of open claims at end of period 360 393 332 336 352          
Average settlement amount per settled claim $ 248,000 $ 277,000 $ 262,000 $ 253,000 $ 224,000 $ 178,000 $ 189,000 $ 191,000 $ 196,000 $ 168,000
Average settlement amount per case closed $ 225,000 $ 245,000 $ 234,000 $ 217,000 $ 168,000 $ 162,000 $ 167,000 $ 171,000 $ 168,000 $ 126,000