Long-Term Obligations (Tables)

12 Months Ended

Jul. 31, 2014

Jul. 31, 2013

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

Long-term obligations consist of the following as of July 31:

	2014			2013
Euro-denominated notes payable in 2017 at a fixed rate of 3.71%	$	40,164		$	39,900
Euro-denominated notes payable in 2020 at a fixed rate of 4.24%	60,246			59,850
USD-denominated notes payable through 2014 at a fixed rate of 5.14%	—			18,750
USD-denominated notes payable through 2016 at a fixed rate of 5.30%	52,286			78,428
USD-denominated notes payable through 2017 at a fixed rate of 5.33%	49,114			65,486
	$	201,810		$	262,414
Less current maturities	$	(42,514	)	$	(61,264	)
	$	159,296		$	201,150

Schedule of Borrowings on Revolving Loan Agreement

As of July 31, 2014, borrowings on the revolving loan agreement and China line of credit were as follows:

	July 31, 2014		Interest Rate
USD-denominated borrowing on revolving loan agreement	$	42,000	1.2472	%
USD-denominated borrowing on China line of credit	6,923		1.3548	%
RMB-denominated borrowing on China line of credit (USD equivalent)	12,499		5.0400	%
Notes payable	$	61,422	2.0311	%

As of July 31, 2013, borrowings on the revolving loan agreement and China line of credit were as follows:

	July 31, 2013		Interest Rate
USD-denominated borrowing on revolving loan agreement	$	39,000	1.2787	%
USD-denominated borrowing on China line of credit	11,613		1.1201	%
Notes payable	$	50,613	1.2423	%

Schedule of Maturities of Long-term Debt

Maturities on long-term debt are as follows:

Years Ending July 31,
2015	$	42,514
2016	42,514
2017	56,536
2018	—
2019	—
Thereafter	60,246
Total	$	201,810