Properties And Equipment (Narrative) (Details) $ in Millions |
12 Months Ended | |||||
---|---|---|---|---|---|---|
Dec. 31, 2019
USD ($)
|
Dec. 31, 2018
USD ($)
|
Dec. 31, 2017
USD ($)
|
Jun. 29, 2018
ft²
|
Jun. 13, 2018
ft²
|
May 12, 2014
a
|
|
Property, Plant and Equipment [Line Items] | ||||||
Depreciation expense for operating property | $ | $ 22.0 | $ 19.5 | $ 14.0 | |||
Capitalized interest | $ | $ 6.2 | $ 3.3 | ||||
Land At Cannon Park, Townsville, Australia [Member] | ||||||
Property, Plant and Equipment [Line Items] | ||||||
Area of property | 163,000 | |||||
Building [Member] | Property In Auburn Redyard, Australia [Member] | ||||||
Property, Plant and Equipment [Line Items] | ||||||
Area of property | 16,830 | |||||
Land [Member] | Property In Auburn Redyard, Australia [Member] | ||||||
Property, Plant and Equipment [Line Items] | ||||||
Area of property | 20,870 | |||||
Burwood [Member] | ||||||
Property, Plant and Equipment [Line Items] | ||||||
Area of property | a | 50.6 | |||||
Redyard ETC [Member] | Land [Member] | Property In Auburn Redyard, Australia [Member] | ||||||
Property, Plant and Equipment [Line Items] | ||||||
Area of property | 519,358 |