|
Business segments (Details 2) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Sep. 30, 2014
|
Jun. 30, 2014
|
Mar. 31, 2014
|
Dec. 31, 2013
|
Sep. 30, 2013
|
Jun. 30, 2013
|
Mar. 31, 2013
|
Dec. 31, 2012
|
Sep. 30, 2014
|
Sep. 30, 2013
|
Sep. 30, 2012
|
|
| Revenues and total long-lived assets | |||||||||||
| Revenues | $ 435,406 | $ 419,899 | $ 439,015 | $ 406,592 | $ 384,339 | $ 334,323 | $ 326,351 | $ 286,266 | $ 1,700,912 | $ 1,331,279 | $ 1,050,145 |
| Total long-lived assets | 137,106 | 128,480 | 137,106 | 128,480 | |||||||
|
United States
|
|||||||||||
| Revenues and total long-lived assets | |||||||||||
| Revenues | 1,306,026 | 999,419 | 775,871 | ||||||||
| Total long-lived assets | 93,500 | 88,812 | 93,500 | 88,812 | |||||||
|
Canada
|
|||||||||||
| Revenues and total long-lived assets | |||||||||||
| Total long-lived assets | 27,043 | 24,135 | 27,043 | 24,135 | |||||||
|
Australia
|
|||||||||||
| Revenues and total long-lived assets | |||||||||||
| Revenues | 170,727 | 157,383 | 163,482 | ||||||||
| Total long-lived assets | 8,769 | 9,459 | 8,769 | 9,459 | |||||||
|
Rest of World
|
|||||||||||
| Revenues and total long-lived assets | |||||||||||
| Revenues | 224,159 | 174,477 | 110,792 | ||||||||
| Total long-lived assets | $ 7,794 | $ 6,074 | $ 7,794 | $ 6,074 | |||||||