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
6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Redeemable Noncontrolling Interest [Roll Forward]    
Beginning balance $ 17,758 $ 10,298
Distribution to noncontrolling interest (590) (643)
Net income attributable to noncontrolling interest 1,016 285
Adjustment to arrive at fair value of interest 717 5,631
Ending balance $ 18,901 $ 15,571