Restructuring - Restructuring Reserve by Type of Cost (Details) - Jun. 30, 2015 - Restructuring Plan 2014 [Member] - Infrastructure Solutions [Member] - USD ($) $ in Thousands	Total	Total
Restructuring Cost and Reserve [Line Items]
Other non-cash restructuring charges (reversals)	$ 2,571	$ 4,076
Cash restructuring charges	3,123	5,156
Pre-tax charges related to restructuring	5,694	9,232
Cost of revenues [Member]
Restructuring Cost and Reserve [Line Items]
Other non-cash restructuring charges (reversals)	35	(132)
Cash restructuring charges	933	1,114
Pre-tax charges related to restructuring	968	982
Operating expenses [Member]
Restructuring Cost and Reserve [Line Items]
Other non-cash restructuring charges (reversals)	2,290	1,270
Cash restructuring charges	2,210	3,362
Pre-tax charges related to restructuring	4,500	4,632
Restructuring charges [Member]
Restructuring Cost and Reserve [Line Items]
Other non-cash restructuring charges (reversals)	0	0
Cash restructuring charges	204	862
Pre-tax charges related to restructuring	204	862
Other expense [Member]
Restructuring Cost and Reserve [Line Items]
Other non-cash restructuring charges (reversals)	246	2,938
Cash restructuring charges	(224)	(182)
Pre-tax charges related to restructuring	$ 22	$ 2,756