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Income Taxes - Narrative (Details) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2014 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Operating Loss Carryforwards [Line Items] |  |  |  |
Statutory rate |  | 35.00% | 35.00% | 35.00%
Valuation allowance |  | $ 3,771 | $ 1,936 |
Undistributed earnings of foreign subsidiaries |  | 74,900 | $ 304,000 |
Unrecognized tax benefits |  | 300 |  |
Unrecognized tax benefits, decrease resulting from settlements with taxing authorities |  |  |  | $ 3,400
Income tax examination, reversal of penalties and interest accrued |  |  |  | $ 1,300
Income tax refunds | $ 35,200 | 28,400 |  |
U.S. [Member] |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Net operating loss carryforward |  | 43,200 |  |
Foreign [Member] |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Tax credit carryforward |  | 7,200 |  |
Foreign [Member] | Well Intervention [Member] |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Net operating loss carryforward |  | 3,200 |  |
Foreign [Member] | Expiration 2025 [Member] |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Tax credit carryforward |  | 2,800 |  |
Foreign [Member] | Expiration 2026 [Member] |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Tax credit carryforward |  | $ 4,400 |  |

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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32698-109319 + Details
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- Definition The amount of the additional liability or refund received or expected based on a final settlement with a taxing authority. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (3) -URI http://asc.fasb.org/extlink&oid=65882285&loc=SL6600010-109319 + Details
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32559-109319 + Details
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