Assets Held-for-Sale and Discontinued Operations (Details 2) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Discontinued operations
Undiscounted contractual commitments	$ 145,400,000
Liability related to discontinue operation	64,900,000		113,600,000
Current liability to discontinued operations	29,381,000		64,404,000
Income (loss) from discontinued operations
Income (loss) from discontinued operations, net of tax	1,515,000	7,011,000
Oil and gas
Operating revenues
Operating revenues	5,057,000	9,989,000
Income (loss) from discontinued operations
Income (loss) from discontinued operations	2,618,000	2,070,000
Less: Impairment charges or other (gains) and losses on sale of wholly owned assets	1,002,000	2,000,000
Less: Income tax expense (benefit)	101,000	(283,000)
Income (loss) from discontinued operations, net of tax	1,515,000	353,000
Rig Services
Operating revenues
Operating revenues		47,204,000
Income (loss) from discontinued operations
Income (loss) from discontinued operations		9,371,000
Less: Impairment charges or other (gains) and losses on sale of wholly owned assets		323,000
Less: Income tax expense (benefit)		2,390,000
Income (loss) from discontinued operations, net of tax		$ 6,658,000