ASSETS HELD FOR SALE (Details) $ in Thousands	3 Months Ended				9 Months Ended
	Dec. 31, 2015	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents		$ 199,117		$ 57,392	$ 199,117	$ 57,392	$ 27,304	$ 28,306
Accounts receivable		129,328			129,328		289,466
Inventories		31,949			31,949		30,171
Other current assets		80,269			80,269		86,854
Current assets		440,663			440,663		433,795
Property and equipment, net		1,005,826			1,005,826		1,235,258
Other non-current assets		40,501			40,501		56,471
Assets		1,494,024		2,406,646	1,494,024	2,406,646	2,322,763
Accounts payable		36,131			36,131		77,631
Other current liabilities		99,025			99,025		164,227
Current liabilities		138,306			138,306		241,858
Other non-current liabilities		32,542			32,542		$ 27,067
Impairment expense		$ 649,944		$ 60,792	692,996	$ 89,479
Number Of Rigs Relocated		1
Oman Business Unit [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents		$ 0			0
Accounts receivable		0			0
Inventories		591			591
Other current assets		0			0
Current assets		591			591
Property and equipment, net		3,631			3,631
Other non-current assets		0			0
Assets		4,222			4,222
Accounts payable		0			0
Other current liabilities		0			0
Current liabilities		0			0
Other non-current liabilities		0			0
Net Assets		4,222			4,222
Impairment expense			$ 21,400
Ecuadorian Business Unit [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment expense					4,100
Bahraini Business Unit [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents		1,576			1,576
Accounts receivable		385			385
Inventories		0			0
Other current assets		660			660
Current assets		2,621			2,621
Property and equipment, net		2,421			2,421
Other non-current assets		137			137
Assets		5,179			5,179
Accounts payable		149			149
Other current liabilities		46			46
Current liabilities		195			195
Other non-current liabilities		84			84
Net Assets		4,900			4,900
Impairment expense					7,000
Proceeds from Sale of Assets Held for Sale					4,900
Columbian Business Unit [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents		0			0
Accounts receivable		0			0
Inventories		83			83
Other current assets		0			0
Current assets		83			83
Property and equipment, net		4,014			4,014
Other non-current assets		0			0
Assets		4,097			4,097
Accounts payable		0			0
Other current liabilities		0			0
Current liabilities		0			0
Other non-current liabilities		0			0
Net Assets		4,097			4,097
Impairment expense					25,300
Enhanced Oilfield Technology Business Unit [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents		0			0
Accounts receivable		0			0
Inventories		1,791			1,791
Other current assets		0			0
Current assets		1,791			1,791
Property and equipment, net		1,209			1,209
Other non-current assets		0			0
Assets		3,000			3,000
Accounts payable		0			0
Other current liabilities		0			0
Current liabilities		0			0
Other non-current liabilities		0			0
Net Assets		3,000			3,000
Impairment expense					6,000
Total Disposal Group
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents		1,576			1,576
Accounts receivable		385			385
Inventories		2,465			2,465
Other current assets		660			660
Current assets		5,086			5,086
Property and equipment, net		11,275			11,275
Other non-current assets		137			137
Assets		16,498			16,498
Accounts payable		149			149
Other current liabilities		46			46
Current liabilities		195			195
Other non-current liabilities		84			84
Net Assets		$ 16,219			$ 16,219
Scenario, Forecast [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number Of Rigs Relocated	13