Commitments and Contingencies (Details) $ in Thousands, € in Millions				1 Months Ended					12 Months Ended
	Apr. 02, 2014 EUR (€)	Aug. 01, 2012 USD ($)	Jul. 05, 2011 affiliate	Dec. 31, 2017 USD ($) Case Defendants Cases	Jun. 30, 2017 USD ($)	Jan. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Oct. 29, 2014 USD ($)	Dec. 31, 2017 USD ($) Case Defendants Cases	Dec. 31, 2016 USD ($) Case	Dec. 31, 2015 USD ($)
Loss Contingencies [Line Items]
Environmental-related accrued liabilities				$ 4,700			$ 5,600		$ 4,700	$ 5,600
Period of being in asbestos litigation									29 years
Number of cases | Case				247					247
Number of cases proceed to verdict | Cases				0					0
Number of cases dismissed | Case									111	50,958
Number of defended cases | Case				247					247
Damages, value									$ 425,000
Number of defendants | Defendants				50					50
Punitive damages, value									$ 271,000
Accrual related to maritime and non-maritime cases, gross amount									1,200	$ 4,400
Insurance recoveries related to lawsuits									100	400
Accrual related to maritime and non-maritime cases, net amount									1,100	4,000
Settlement costs									10,500	9,800
Costs of administering and litigating claims									29,200	27,100
Income tax expense									$ 15,800	(3,700)	$ (14,800)
Other Matters [Abstract]
Maturities of long-term debt range, end									Dec. 31, 2022
Minimum rental payments required under non-cancelable lease agreement for year 2018				$ 15,400					$ 15,400
Minimum rental payments required under non-cancelable lease agreement for year 2019				13,400					13,400
Minimum rental payments required under non-cancelable lease agreement for year 2020				10,900					10,900
Minimum rental payments required under non-cancelable lease agreement for year 2021				8,000					8,000
Minimum rental payments required under non-cancelable lease agreement for year 2022				5,600					5,600
Minimum rental payments required under non-cancelable lease agreement thereafter				9,900					9,900
Rent expense									21,400	$ 23,900	41,600
Letters of credit				31,700					31,700
Performance bonds				187,600					187,600
Other guarantees				$ 123,600					$ 123,600
Europe
Loss Contingencies [Line Items]
Number of affiliates engaged in violations | affiliate			2
Parent Company
Loss Contingencies [Line Items]
Number of cases | Cases				2					2
Damages, value									$ 20,000
Monetary Damages
Loss Contingencies [Line Items]
Number of cases | Case				146					146
Pending cases, number | Case				100					100
Allege Only Damages
Loss Contingencies [Line Items]
Number of cases | Case				44					44
Amount per plaintiff				$ 726					$ 726
Infractions Including Potential Interest and Penalties | Brazil
Loss Contingencies [Line Items]
Income tax expense		$ 8,000
Summons to recover contested incentives								$ 8,000
Infractions Including Potential Interest and Penalties | Brazil | Minimum
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss				0					0
Infractions Including Potential Interest and Penalties | Brazil | Maximum
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss				8,000					8,000
Disputed Credits, Including Potential Interest and Penalties | Brazil
Loss Contingencies [Line Items]
Income tax expense									$ 22,000
Asbestos Issue
Loss Contingencies [Line Items]
Number of new cases | Case									63	84
Number of cases dismissed | Case									51,069
Settlement costs									$ 700	$ 100	200
Costs of administering and litigating claims									$ 2,100	$ 1,000	$ 1,400
GK Tech
Loss Contingencies [Line Items]
Litigation settlement, amount						$ 12,000
Silec
Loss Contingencies [Line Items]
Damages, value | €	€ 1.9
Period of participation in underground power cables businesses			10 months
SEC and DOJ | Investigation Related to Financial Restatements
Loss Contingencies [Line Items]
Fines, disgorgement and pre-judgment interest							$ 82,300
DOJ | Investigation Related to Financial Restatements
Loss Contingencies [Line Items]
Penalties						20,500
SEC | Investigation Related to Financial Restatements
Loss Contingencies [Line Items]
Penalties				$ 30,900	$ 18,500	$ 12,400