Segment Reporting (Reportable Segments Consolidated Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Total Assets	$ 7,297,471	$ 6,772,002
Corporate, Non-Segment [Member]
Total Assets	1,174,997	314,127
Operating Segments [Member]
Total Assets	6,122,474	6,457,875
Operating Segments [Member] | Industrial [Member]
Total Assets	5,803,370	4,828,984
Operating Segments [Member] | All Other Segments [Member]
Total Assets	186,433	1,501,737
Operating Segments [Member] | Service Operations [Member]
Total Assets	$ 132,671	$ 127,154