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Redeemable Noncontrolling Interest (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Increase (Decrease) in Temporary Equity [Roll Forward]        
Beginning balance     $ 55,393 $ 53,681
Acquisition of redeemable noncontrolling interest       2,836
Sale of additional shares to parent     (24,247) (7,981)
Net income attributable to redeemable noncontrolling interests 837 1,041 3,738 3,378
Contribution to maintain ownership percentage       6,135
Foreign currency translation adjustment attributable to noncontrolling interests     1,903 (1,212)
Effective portion of cash flow hedge (90) 0 (142) 0
Ending balance $ 36,645 $ 56,837 $ 36,645 $ 56,837