XML 63 R35.htm IDEA: XBRL DOCUMENT v3.20.1
Leases (Narrative) (Details) - USD ($)
$ in Thousands
6 Months Ended
Mar. 31, 2020
Oct. 01, 2019
Lessee, Lease, Description [Line Items]    
Right of Use Asset in Exchange for New Lease Liability $ 0  
Lease Payments $ 21,247  
Weighted Average Remaining Lease Term 8 years 7 months 6 days  
Weighted Average Discount Rate 3.50%  
Cash Paid for Operating Liabilities $ 2,200  
Buildings and Property [Member]    
Lessee, Lease, Description [Line Items]    
Non-Cancelable Lease Term 10 years  
Operating Lease Renewal Term 18 months  
Lease Payments $ 8,400  
Buildings and Property [Member] | Minimum [Member]    
Lessee, Lease, Description [Line Items]    
Non-Cancelable Lease Term 3 months  
Operating Lease Renewal Term 1 year  
Buildings and Property [Member] | Maximum [Member]    
Lessee, Lease, Description [Line Items]    
Non-Cancelable Lease Term 10 years  
Operating Lease Renewal Term 14 years  
Drilling Rigs [Member] | Maximum [Member]    
Lessee, Lease, Description [Line Items]    
Non-Cancelable Lease Term 1 year  
Guidance for Leases [Member]    
Lessee, Lease, Description [Line Items]    
Increase in Assets and Liabilities Upon Adoption of Leasing Standard   $ 19,700