XML 81 R67.htm IDEA: XBRL DOCUMENT v3.5.0.2
Segment Reporting and Related Disclosures Income Before Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
May 31, 2016
Feb. 29, 2016
Nov. 30, 2015
Aug. 31, 2015
May 31, 2015
Feb. 28, 2015
Nov. 30, 2014
Aug. 31, 2014
Nov. 30, 2014
May 31, 2016
May 31, 2015
May 31, 2014
Segment Reporting Information [Line Items]                        
Marginal contribution                   $ 45,222 $ 57,324 $ 64,886
Unallocated SG&A expenses                   37,139 34,396 32,747
Interest income/(expense), net                   (329) 332 387
Other income                   33 1,390 0
Income before income taxes $ (1,197) $ 1,492 $ 3,541 $ 3,951 $ 5,646 $ 3,746 $ 7,696 $ 7,562 $ 24,650 7,787 24,650 32,526
Operating Segments [Member] | T&M equipment                        
Segment Reporting Information [Line Items]                        
Marginal contribution                   38,527 50,410 58,924
Operating Segments [Member] | DP equipment                        
Segment Reporting Information [Line Items]                        
Marginal contribution                   $ 6,695 $ 6,914 $ 5,962