|
Business Combinations (Narrative) (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified |
3 Months Ended | 6 Months Ended | 3 Months Ended | ||
|---|---|---|---|---|---|
|
Mar. 31, 2015
|
Mar. 31, 2014
|
Mar. 31, 2015
|
Mar. 31, 2014
|
Dec. 30, 2014
|
|
| Business Acquisition [Line Items] | |||||
| Acquisitions, less cash acquired | $ 34.5 | $ 0 | |||
| Gain on previously held equity interest | 0 | 0 | 17.9 | 0 | |
| Production Joint Venture [Member] | |||||
| Business Acquisition [Line Items] | |||||
| Acquisitions, less cash acquired | 22.6 | ||||
| Percent ownership before acquisition | 50.00% | ||||
| Percent ownership after acquisition | 100.00% | ||||
| Gain on previously held equity interest | 17.9 | ||||
| Gain on previously held equity interest, after tax | $ 11.2 | ||||
| Gain on previously held equity interest, per share | $ 0.05 | ||||