Debt (Narrative) (Detail) (USD $) In Thousands, unless otherwise specified			3 Months Ended					1 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Sep. 30, 2014 Revolving bank loans	Apr. 30, 2014 Revolving bank loans	Sep. 30, 2014 Revolving bank loans Minimum	Sep. 30, 2014 Revolving bank loans Maximum	Sep. 30, 2014 Term bank loans Installment	Apr. 30, 2014 Mortgage payable	Jun. 30, 2011 Mortgage payable	Sep. 30, 2014 Mortgage payable	Sep. 30, 2014 Open letter of credit	Jun. 30, 2014 Open letter of credit
Debt Instrument [Line Items]
Loans, maximum amount				$ 60,000			$ 70,000
Revolving loans, expiration date								Apr. 30, 2019
Bank loans outstanding			37,000				68,000
Lines of credit, variable rate basis			LIBOR
Adjusted LIBOR Loans at interest rates					2.15%	2.32%	2.23%
Mortgage interest rate										4.92%
Term loans, number of installments							19
Short term loans payable	8,697	8,343					8,500
Letters of credit											32	105
Mortgage payable	$ 3,305	$ 3,355							$ 3,947
Mortgage payable, amortization period									20 years