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Borrowings (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Contractual maturities
2013	$ 186,767
2014	251
2015	20,783
2016	21,956
2017	56,634
Thereafter	59,373
Total borrowings	$ 345,764	$ 370,111

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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