Significant Accounting Policies and Accounting Developments (Details)	3 Months Ended	12 Months Ended					12 Months Ended		3 Months Ended		12 Months Ended
	Jun. 30, 2013	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Feb. 13, 2013 VEF	Feb. 12, 2013 VEF	Dec. 31, 2014 Minimum	Dec. 31, 2014 Maximum	Dec. 31, 2014 Venezuela VEF	Mar. 31, 2013 Venezuela USD ($)	Dec. 31, 2014 Venezuela USD ($)	Dec. 31, 2012 Venezuela	Dec. 31, 2013 Venezuela	Dec. 31, 2014 SICAD I Exchange rate Venezuela VEF
Interest Ownership for Cost Method Accounting		20.00%
Stock split, conversion ratio	3
Foreign currency exchange rate, translation					6.3	4.3			6.3					12.0
Segment sales percentage of consolidated sales											1.00%	1.00%
Segment long lived assets percentage of consolidated long lived assets									1.00%			1.00%	1.00%
Foreign currency and other non-cash adjustments		$ 38,533,000	$ (2,418,000)	$ (13,605,000)						$ (4,000,000)
Share-based Compensation [Abstract]
Restricted shares grant period		4 years
Revenue Recognition [Abstract]
Period of delivery of products and services							1 year	2 years
Percentage of completion revenue		7.00%	7.00%	7.00%
General extension period for service and repair contracts		5 years
Maximum percentage of revenue on fixed fee services		1.00%	1.00%	1.00%
Warranty obligations sales trend period		24 months
Finite-Lived Intangible Assets, Net [Abstract]
Intangible asset, useful life							4 years	40 years
Research and Development [Abstract]
Research and development costs		40,900,000	37,800,000	38,900,000
SICAD I Foreign Currency Transaction Loss Before Tax											8,000,000
SICAD II Foreign Currency Transaction Loss Before Tax											$ 14,000,000
Percentage of outstanding accounts receivable									9.00%
Percentage of Receivables Re-classed to Long Term									48.00%