14. Segment Information Segment Asset Reconciliation (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 3,388,790	$ 3,443,503
Other Noncurrent Assets [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	675,700	579,100
Goodwill [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	517,800	495,400
Property, Plant and Equipment excluding segment specific [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	(14,900)	(4,200)
Other Current Assets [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	835,100	1,092,000
Operating Segments [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 1,375,100	$ 1,281,200