DISCONTINUED OPERATIONS (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Major components of earnings from discontinued operations
Earnings from discontinued operations before tax	$ 61,673
Income tax expense	17,104
Net earnings from discontinued operations	44,569	0	0	44,569
Lone Pine | Discontinued Operations
Major components of earnings from discontinued operations
Total revenues	137,834
Production expenses	40,350
General and administrative	8,846
Depreciation, depletion, and amortization	60,780
Interest expense	3,866
Realized and unrealized gains on derivative instruments, net	(33,628)
Realized foreign currency exchange gains	(33,869)
Unrealized foreign currency exchange losses, net	28,488
Other, net	$ 1,328