Organization and Summary of Significant Accounting Policies (Drilling Contracts) (Details) $ in Millions	3 Months Ended	6 Months Ended	12 Months Ended		27 Months Ended
	Mar. 31, 2016 USD ($) drilling_rigs well_service_rigs	Sep. 30, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2016 USD ($)	Apr. 27, 2016 drilling_rigs
Accounting Policies [Line Items]
Gain (Loss) on Contract Termination | $	$ 7.1		$ 49.2	$ 0.3
Subsequent Event [Member]
Accounting Policies [Line Items]
Gain (Loss) on Contract Termination | $		$ 6.2			$ 62.8
Production Services Segment [Member]
Accounting Policies [Line Items]
Well Servicing Rigs | well_service_rigs	125
Drilling Services Segment [Member]
Accounting Policies [Line Items]
Drilling Rigs	31
Drilling Services Segment [Member] | Received Early Termination Notice on Contract [Member] | Subsequent Event [Member]
Accounting Policies [Line Items]
Drilling Rigs						19
Drilling Services Segment [Member] | Received Early Termination Notice on Contract in 2016 [Member]
Accounting Policies [Line Items]
Drilling Rigs	3
Drilling Services Segment [Member] | Currently Under Drilling Contract [Member] | Subsequent Event [Member]
Accounting Policies [Line Items]
Drilling Rigs						16
Drilling Services Segment [Member] | Currently Under Drilling Contract [Member] | Spot Market Contract [Member] | Subsequent Event [Member]
Accounting Policies [Line Items]
Drilling Rigs						3
Drilling Services Segment [Member] | Currently Under Drilling Contract [Member] | Term Contract [Member] | Subsequent Event [Member]
Accounting Policies [Line Items]
Drilling Rigs						13
Assigned Drilling Rigs, Number of Contracts Expiring in Six Months						5
Assigned Drilling Rigs, Number of Contracts Expiring in Six Months to One Year						1
Assigned Drilling Rigs, Number of Contracts Expiring in Twelve Months to Eighteen Months						0
Assigned Drilling Rigs, Number of Contracts Expiring in Eighteen Months to Two Years						2
Assigned Drilling Rigs, Number of Contracts Expiring in Twenty Four Months to Fourty Eight Months						5
Drilling Services Segment [Member] | Geographic Distribution, Domestic [Member] | Subsequent Event [Member]
Accounting Policies [Line Items]
Drilling Rigs						23
Drilling Services Segment [Member] | Geographic Distribution, Domestic [Member] | Currently Under Drilling Contract [Member] | Subsequent Event [Member]
Accounting Policies [Line Items]
Drilling Rigs						13
Drilling Services Segment [Member] | Geographic Distribution, Domestic [Member] | Currently Under Drilling Contract [Member] | Term Contract [Member] | Subsequent Event [Member]
Accounting Policies [Line Items]
Drilling Rigs						10
Drilling Services Segment [Member] | Geographic Distribution, Domestic [Member] | Currently Under Drilling Contract [Member] | Earning Under Contract [Member] | Spot Market Contract [Member] | Subsequent Event [Member]
Accounting Policies [Line Items]
Drilling Rigs						3
Drilling Services Segment [Member] | Geographic Distribution, Domestic [Member] | Currently Under Drilling Contract [Member] | Earning Under Contract [Member] | Term Contract [Member] | Subsequent Event [Member]
Accounting Policies [Line Items]
Drilling Rigs						8
Assigned Drilling Rigs, Number of Contracts Expiring in Six Months						2
Assigned Drilling Rigs, Number of Contracts Expiring in Six Months to One Year						1
Assigned Drilling Rigs, Number of Contracts Expiring in Twelve Months to Eighteen Months						0
Assigned Drilling Rigs, Number of Contracts Expiring in Eighteen Months to Two Years						2
Assigned Drilling Rigs, Number of Contracts Expiring in Twenty Four Months to Fourty Eight Months						3
Drilling Services Segment [Member] | Geographic Distribution, Domestic [Member] | Currently Under Drilling Contract [Member] | Earning But Not Working [Member] | Spot Market Contract [Member] | Subsequent Event [Member]
Accounting Policies [Line Items]
Drilling Rigs						0
Drilling Services Segment [Member] | Geographic Distribution, Domestic [Member] | Currently Under Drilling Contract [Member] | Earning But Not Working [Member] | Term Contract [Member] | Subsequent Event [Member]
Accounting Policies [Line Items]
Drilling Rigs						2
Assigned Drilling Rigs, Number of Contracts Expiring in Six Months						2
Assigned Drilling Rigs, Number of Contracts Expiring in Six Months to One Year						0
Assigned Drilling Rigs, Number of Contracts Expiring in Twelve Months to Eighteen Months						0
Assigned Drilling Rigs, Number of Contracts Expiring in Eighteen Months to Two Years						0
Assigned Drilling Rigs, Number of Contracts Expiring in Twenty Four Months to Fourty Eight Months						0
Drilling Services Segment [Member] | Geographic Distribution, Foreign [Member] | Currently Under Drilling Contract [Member] | Suspended Operations (not earning) [Member] | Spot Market Contract [Member] | Subsequent Event [Member]
Accounting Policies [Line Items]
Drilling Rigs						0
Drilling Services Segment [Member] | Geographic Distribution, Foreign [Member] | Currently Under Drilling Contract [Member] | Suspended Operations (not earning) [Member] | Term Contract, Cancelable [Member] | Subsequent Event [Member]
Accounting Policies [Line Items]
Drilling Rigs						3
Assigned Drilling Rigs, Number of Contracts Expiring in Six Months						1
Assigned Drilling Rigs, Number of Contracts Expiring in Six Months to One Year						0
Assigned Drilling Rigs, Number of Contracts Expiring in Twelve Months to Eighteen Months						0
Assigned Drilling Rigs, Number of Contracts Expiring in Eighteen Months to Two Years						0
Assigned Drilling Rigs, Number of Contracts Expiring in Twenty Four Months to Fourty Eight Months						2
Colombia [Member] | Drilling Services Segment [Member]
Accounting Policies [Line Items]
Drilling Rigs	8
Minimum [Member] | Drilling Services Segment [Member]
Accounting Policies [Line Items]
Drilling Rigs, Contractual Terms	six months
Maximum [Member] | Drilling Services Segment [Member]
Accounting Policies [Line Items]
Drilling Rigs, Contractual Terms	4 years
550 Horsepower [Member] | Production Services Segment [Member]
Accounting Policies [Line Items]
Well Servicing Rigs | well_service_rigs	114
600 Horsepower [Member] | Production Services Segment [Member]
Accounting Policies [Line Items]
Well Servicing Rigs | well_service_rigs	11