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Restructuring and Integration Costs (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Restructuring and integration activities [Roll Forward]    
Exit activity liability, beginning of period $ 3,561 $ 8,655
Restructuring and integration costs [Abstract]    
Amount provided for during the period 1,437 1,344
Non-cash usage, including asset write-downs (63) (736)
Cash payments (1,156) (5,702)
Exit activity liability, end of period 3,779 3,561
Workforce Reduction [Member]
    
Restructuring and integration activities [Roll Forward]    
Exit activity liability, beginning of period 1,907 6,220
Restructuring and integration costs [Abstract]    
Amount provided for during the period 1,210 430
Non-cash usage, including asset write-downs 0 0
Cash payments (891) (4,743)
Exit activity liability, end of period 2,226 1,907
Other Exit Costs [Member]
    
Restructuring and integration activities [Roll Forward]    
Exit activity liability, beginning of period 1,654 2,435
Restructuring and integration costs [Abstract]    
Amount provided for during the period 227 914
Non-cash usage, including asset write-downs (63) (736)
Cash payments (265) (959)
Exit activity liability, end of period $ 1,553 $ 1,654