Details Of Certain Accounts (Other Assets, Net) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011
Details Of Certain Accounts [Abstract]
Deferred dry dock expenses, net	$ 22,704	[1]	$ 5,381	[1]
Deferred financing costs, net	24,338		26,483
Intangible assets with finite lives, net	491		531
Other	2,304		2,771
Total other assets, net	$ 49,837		$ 35,166

[1] The increase subsequent to December 31, 2011 reflects the costs associated with the regulatory dry docks for our Q4000, Seawell and Well Enhancer vessels during 2012.