Significant Accounting Policies and Accounting Developments (Details) $ in Thousands	3 Months Ended			12 Months Ended
	Mar. 31, 2015 USD ($)	Jun. 30, 2013	Mar. 31, 2013 USD ($)	Dec. 31, 2015 USD ($) VEF / $	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Feb. 13, 2013 VEF / $	Feb. 12, 2013 VEF / $
Stock split, conversion ratio		3
Foreign currency exchange rate, translation | VEF / $								4.3
Foreign currency and other non-cash adjustments				$ 72,888	$ 39,627	$ (1,462)
Interest Ownership for Cost Method Accounting (percentage)				20.00%
Revenue Recognition [Abstract]
Percentage of completion revenue				7.00%	7.00%	7.00%
General extension period for service and repair contracts (in years)				5 years
Maximum percentage of revenue on fixed fee services				1.00%	1.00%	1.00%
Warranty obligations sales trend period (in months)				24 months
Finite-Lived Intangible Assets, Net [Abstract]
Goodwill				$ 1,223,986	$ 1,067,255	$ 1,107,551
Share-based Compensation [Abstract]
Restricted shares grant period				4 years
Research and Development [Abstract]
Research and development costs				$ 45,900	$ 40,900	$ 37,800
Minimum
Revenue Recognition [Abstract]
Period of delivery of products and services (in years)				1 year
Finite-Lived Intangible Assets, Net [Abstract]
Intangible asset, useful life (in years)				4 years
Maximum
Revenue Recognition [Abstract]
Period of delivery of products and services (in years)				2 years
Finite-Lived Intangible Assets, Net [Abstract]
Intangible asset, useful life (in years)				40 years
Venezuela
Segment long lived assets percentage of consolidated long lived assets				0.50%	1.00%	1.00%
Segment sales percentage of consolidated sales				0.50%	1.00%	1.00%
Percentage of outstanding accounts receivable				7.00%	9.00%
Percentage of Receivables Re-classed to Long Term				64.00%	48.00%
Foreign currency exchange rate, translation | VEF / $				6.3			6.3
Foreign currency and other non-cash adjustments	$ 20,600		$ (4,000)
Remeasurement Recognized In Other (Expense) Income, Net	18,500
Currency Remeasurement Expense Recognized As Cost of Goods Sold	$ 2,100
SICAD I Exchange rate | Venezuela
Foreign currency exchange rate, translation | VEF / $				198.7
Engineered Product Operations
Finite-Lived Intangible Assets, Net [Abstract]
Goodwill				$ 157,000
Percentage of Fair Value in Excess of Carrying Amount				70.00%