Long-Term Obligations (Tables)

12 Months Ended

Jul. 31, 2015

Debt Disclosure [Abstract]

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

Total debt consists of the following as of July 31, 2015:

	2015			2014
Euro-denominated notes payable in 2017 at a fixed rate of 3.71%	$	32,960		$	40,164
Euro-denominated notes payable in 2020 at a fixed rate of 4.24%	49,442			60,246
USD-denominated notes payable through 2016 at a fixed rate of 5.30%	26,143			52,286
USD-denominated notes payable through 2017 at a fixed rate of 5.33%	32,743			49,114
USD-denominated borrowing on revolving loan agreement at a weighted average rate of 1.2740% and 1.2472% as of July 31, 2015 and 2014, respectively	102,000			42,000
USD-denominated borrowing on revolving loan agreement at a weighted average rate of 1.9501% and 1.3548% as of July 31, 2015 and 2014, respectively	1,836			6,923
CNY-denominated borrowing on revolving loan agreements at a weighted average rate of 4.6634% and 5.0400% as of July 31, 2015 and 2014, respectively (USD equivalent)	8,575			12,499
	$	253,699		$	263,232
Less notes payable	(10,411		)	(61,422		)
Total long-term debt	$	243,288		$	201,810

Schedule of Maturities of Long-term Debt

Maturities on long-term debt are as follows:

Years Ending July 31,
2016	$	42,514
2017	151,332
2018	—
2019	—
2020	49,442
Total	$	243,288