Quarterly report pursuant to Section 13 or 15(d)

Redeemable Noncontrolling Interests (Details)

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Redeemable Noncontrolling Interests (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Redeemable Noncontrolling Interest [Roll Forward]    
Redeemable noncontrolling interest, beginning of period $ 10,298 $ 8,908
Net loss attributable to noncontrolling interest (790) (574)
Increase in redeemable noncontrolling interest and decrease in shareholders’ equity in connection with adjustment to arrive at fair value of noncontrolling interest 848 903
Redeemable noncontrolling interest, end of period $ 10,356 $ 9,237