Income Taxes - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Statutory rate		35.00%	35.00%	35.00%
Operating Loss Carryforwards [Line Items]
Valuation allowance		$ 1,936	$ 23,076
Undistributed earnings of foreign subsidiaries		304,000	338,000
Unrecognized tax benefit, decrease resulting from settlements with taxing authorities			3,400
Income tax examination, penalties and interest expense				$ 200
Income tax examination, penalties and interest accrued				$ 1,300
Income tax examination, reversal of penalties and interest accrued			$ 1,300
Income tax refund	$ 35,200
U.S. [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward or carryback		47,200
Foreign [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward or carryback		7,900
Tax credit		4,600
Foreign [Member] | Well Intervention [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward or carryback		$ 13,700