Assets Held for Sale and Discontinued Operations (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Assets held-for-sale
Assets held for sale	$ 243,264	$ 383,857
Oil and gas
Assets held-for-sale
Assets held for sale	239,936	377,625
Rig Services
Assets held-for-sale
Assets held for sale	$ 3,328	$ 6,232

Current assets (normally turning over within one year or one business cycle if longer) that are held for sale apart from normal operations and anticipated to be sold within one year.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 45

-Paragraph 10

-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1107-107759

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant