EARNINGS PER SHARE (EPS) (Details) - Summary of Reconciliation of Share Amounts Used in Earnings Per Share
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2015
Mar. 31, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Weighted average shares outstanding - basic 45,349 48,990 45,829 50,872
Incremental shares from stock based compensation 1,874 0 1,853 0
Convertible debt due 2017 446 0 0 0
Weighted average shares outstanding - diluted 47,669 48,990 47,682 50,872
Options [Member]        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Anti-dilutive restricted stock excluded from diluted EPS computation 567 644 580 644