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Disclosure of Supplemental Cash Flow Information (Details) - Disclosure of Supplemental Cash Flow Information (USD $)
In Thousands, unless otherwise specified
0 Months Ended 12 Months Ended
Jul. 02, 2011
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Disclosure of Supplemental Cash Flow Information [Abstract]        
Interest paid   $ 5,537 $ 7,295 $ 5,081
Income taxes paid   7,556 6,940 9,159
Fair value of CTI assets acquired       217,015
Fair value of CTI liabilities acquired       57,159
Cash paid 159,900     159,856
Less: Cash acquired       11,097
Net cash paid for CTI acquisition       $ 148,759