Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE MEASUREMENTS, Assets and Liabilities Measured on Recurring Basis (Details)

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FAIR VALUE MEASUREMENTS, Assets and Liabilities Measured on Recurring Basis (Details) (Fair Value, Measurements, Recurring [Member], USD $)
In Thousands, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Assets:    
Cash equivalents $ 228,760 $ 138,537
Forward currency contracts 0 355
Interest rate cap 2 7
Stock options 1,698 1,060
Total 230,460 139,959
Liabilities:    
Interest rate swaps 2,971 3,037
Forward currency contracts 1,810 0
Contingent consideration 7,769 8,363
Total 12,550 11,400
Fair Value, Inputs, Level 1 [Member]
    
Assets:    
Cash equivalents 228,760 138,537
Forward currency contracts 0 0
Interest rate cap 0 0
Stock options 0 0
Total 228,760 138,537
Liabilities:    
Interest rate swaps 0 0
Forward currency contracts 0 0
Contingent consideration 0 0
Total 0 0
Fair Value, Inputs, Level 2 [Member]
    
Assets:    
Cash equivalents 0 0
Forward currency contracts 0 355
Interest rate cap 2 7
Stock options 0 0
Total 2 362
Liabilities:    
Interest rate swaps 2,971 3,037
Forward currency contracts 1,810 0
Contingent consideration 0 0
Total 4,781 3,037
Fair Value, Inputs, Level 3 [Member]
    
Assets:    
Cash equivalents 0 0
Forward currency contracts 0 0
Interest rate cap 0 0
Stock options 1,698 1,060
Total 1,698 1,060
Liabilities:    
Interest rate swaps 0 0
Forward currency contracts 0 0
Contingent consideration 7,769 8,363
Total $ 7,769 $ 8,363