Deferred Income (New Markets Tax Credit Transaction) (Details) - USD ($)				9 Months Ended
	Sep. 30, 2014	Sep. 11, 2012	Feb. 03, 2012	Jun. 30, 2015
Deferred Income (New Markets Tax Credit Transaction)
Deferred income	$ 30,990,000			$ 30,990,000
Deferred costs, net	13,515,000			$ 14,461,000
New Markets Tax Credit Program Special Purpose Entity [Member] | Federal New Markets Tax Credit Transaction [Member]
Deferred Income (New Markets Tax Credit Transaction)
Maximum percentage of qualified investment permitted in NMTC to claim credits against Federal income tax				39.00%
Variable Interest Entity Primary Beneficiary [Member] | Investor [Member] | New Markets Tax Credit Program Special Purpose Entity [Member] | Federal New Markets Tax Credit Transaction [Member]
Deferred Income (New Markets Tax Credit Transaction)
Tax Credit Receivable Term		7 years	7 years
Deferred income	30,990,000			$ 30,990,000
Tax credit recapture period				7 years
Variable Interest Entity Primary Beneficiary [Member] | RBHTRB Newark Holdings LLC [Member] | Investor [Member] | New Markets Tax Credit Program Special Purpose Entity [Member] | Federal New Markets Tax Credit Transaction [Member]
Deferred Income (New Markets Tax Credit Transaction)
Amount contributed to effect financing transaction	5,100,000	$ 16,400,000	$ 11,200,000
Deferred costs, net	$ 8,700,000			$ 9,900,000
Variable Interest Entity Primary Beneficiary [Member] | RBHTRB Newark Holdings LLC [Member] | Subsidiaries [Member] | New Markets Tax Credit Program Special Purpose Entity [Member]
Deferred Income (New Markets Tax Credit Transaction)
Period after which option to acquire special purpose entity may be exercised				7 years