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Subsequent Events Subsequent Events (Notes)	3 Months Ended
Subsequent Events Subsequent Events (Notes)	Dec. 31, 2016
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Borrowings In January 2017, we borrowed $40 million under our credit facility to fund working capital requirements. Sale of investment In January 2017, we sold our cost method investment in a private company for $13.7 million for a gain of approximately $3.7 million.