SUMMARY OF QUARTERLY RESULTS OF OPERATIONS (UNAUDITED) (Details 13) (RSUs, USD $)	12 Months Ended	3 Months Ended
	Sep. 30, 2013	Jun. 30, 2013 Interim Financial Information	Mar. 31, 2013 Interim Financial Information	Sep. 30, 2013 Interim Financial Information
Number of Shares
Balance unvested at the beginning of the period (in shares)		426,511		421,369
Granted (in shares)	426,511		426,511
Forfeited (in shares)	5,142	5,142
Balance unvested at the end of the period (in shares)	421,369	421,369	426,511	421,369
Weighted Average Grant-Date Fair Value
Balance unvested at the beginning of the period (in dollars per share)		$ 43.76		$ 43.76
Granted (in dollars per share)	$ 43.76		$ 43.76
Forfeited (in dollars per share)	$ 43.76	$ 43.76
Balance unvested at the end of the period (in dollars per share)	$ 43.76	$ 43.76	$ 43.76	$ 43.76