Goodwill and Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Mar. 31, 2014
Changes in goodwill
Balance at the beginning of the period	$ 171,867
Changes to allocation of HML purchase price	31
Foreign currency translation	1,293
Balance at the end of the period	173,191
Health Services
Changes in goodwill
Balance at the beginning of the period	125,096
Changes to allocation of HML purchase price	31
Foreign currency translation	1,393
Balance at the end of the period	126,520
Human Services
Changes in goodwill
Balance at the beginning of the period	46,771
Foreign currency translation	(100)
Balance at the end of the period	$ 46,671