XML 77 R63.htm IDEA: XBRL DOCUMENT v3.10.0.1
Derivative Instruments (Schedule Of Estimated Amount Of Net Gains Associated With Derivatives) (Details)
$ in Millions
Dec. 31, 2018
USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Net unrealized gains to be reclassified to contract drilling expense $ (5.2)
Net realized gains to be reclassified to depreciation expense 0.8
Net realized (losses) to be reclassified to interest expense (0.2)
Net gains to be reclassified to earnings $ (4.6)