Reporting Segments Schedule of restructuring and other related cots recognized during the year (Details) (USD $)	3 Months Ended	12 Months Ended						12 Months Ended								3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2013 GETS [Member]	Dec. 31, 2011 GETS [Member]	Dec. 31, 2013 PSS [Member]	Dec. 31, 2011 PSS [Member]	Dec. 31, 2013 MRI [Member]	Dec. 31, 2011 MRI [Member]	Dec. 31, 2013 Corporate [Member]	Dec. 31, 2011 Corporate [Member]	Jun. 30, 2011 Operating and Administrative Expenses [Member]	Dec. 31, 2013 Operating and Administrative Expenses [Member]	Dec. 31, 2013 Year-End Adjustment [Member]
Segment Reporting Information [Line Items]
Restructuring and other related costs	$ 8,100,000	$ 5,716,000	$ 0	$ 8,100,000				$ 2,132,000	$ 4,467,000	$ 2,394,000	$ 2,622,000	$ 215,000	$ 372,000	$ 975,000	$ 639,000
Benefit related to settlement																9,700,000	3,300,000
Fair value of contingent consideration		$ 600,000			$ 500,000	$ 400,000	$ 300,000											$ 1,800,000