Pension and Retirement Plans (Detail) - Components of net periodic benefit costs (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Pension:
Pension:
Service cost	$ 15	$ 18	$ 45	$ 55
Interest cost	179	198	557	596
Expected return on plan assets	(96)	(105)	(304)	(313)
Amortization of:
Prior service gain	0	0	0	0
Amortization of net gain	41	30	125	89
Net periodic benefit cost	139	141	423	427
Post Retirement:
Pension:
Service cost	0	0	0	0
Interest cost	8	18	26	53
Amortization of:
Amortization of net gain	(44)	17	(136)	53
Net periodic benefit cost	(36)	35	(110)	106
Foreign | Pension:
Pension:
Service cost	15	15	45	47
Interest cost	163	178	509	534
Expected return on plan assets	(96)	(105)	(304)	(313)
Amortization of:
Prior service gain	0	0	0	0
Amortization of net gain	35	22	107	66
Net periodic benefit cost	117	110	357	334
Foreign | Post Retirement:
Pension:
Service cost	0	0	0	0
Interest cost	0	0	0	0
Amortization of:
Amortization of net gain	0	0	0	0
Net periodic benefit cost	0	0	0	0
U.S. | Pension:
Pension:
Service cost	0	3	0	8
Interest cost	16	20	48	62
Expected return on plan assets	0	0	0	0
Amortization of:
Prior service gain	0	0	0	0
Amortization of net gain	6	8	18	23
Net periodic benefit cost	22	31	66	93
U.S. | Post Retirement:
Pension:
Service cost	0	0	0	0
Interest cost	8	18	26	53
Amortization of:
Amortization of net gain	(44)	17	(136)	53
Net periodic benefit cost	$ (36)	$ 35	$ (110)	$ 106