Inventories, net (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Inventories Net [Abstract]
Finished goods	$ 72,621	$ 50,878
Work in progress	14,377	12,349
Raw materials	37,501	29,561
Inventory, gross	124,499	92,788
Inventory reserve	(15,324)	(11,781)
Inventories, net	$ 109,175	$ 81,007