Goodwill and Other Intangible Assets (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
Gross carrying amount and accumulated amortization for each major class of definite-lived intangible asset
Carrying amount	$ 52,291	$ 35,511	$ 10,787
Accumulated amortization	(10,502)	(9,007)	(3,925)
Net Book Value	41,789	26,504	6,862
Real Estate Finders' Fees [Member]
Gross carrying amount and accumulated amortization for each major class of definite-lived intangible asset
Carrying amount	1,563	1,457	1,221
Accumulated amortization	(620)	(590)	(500)
Net Book Value	943	867	721
Non-compete Agreements [Member]
Gross carrying amount and accumulated amortization for each major class of definite-lived intangible asset
Carrying amount	4,513	4,504	3,836
Accumulated amortization	(3,453)	(3,290)	(2,574)
Net Book Value	1,060	1,214	1,262
Favorable Lease [Member]
Gross carrying amount and accumulated amortization for each major class of definite-lived intangible asset
Carrying amount	1,159	1,159	985
Accumulated amortization	(464)	(436)	(353)
Net Book Value	695	723	632
Franchise Rights [Member]
Gross carrying amount and accumulated amortization for each major class of definite-lived intangible asset
Carrying amount	1,603	1,625	1,567
Accumulated amortization	(118)	(102)	(49)
Net Book Value	1,485	1,523	1,518
Deferred Financing Costs [Member]
Gross carrying amount and accumulated amortization for each major class of definite-lived intangible asset
Carrying amount	10,628	10,584	2,411
Accumulated amortization	(4,226)	(3,459)	(413)
Net Book Value	6,402	7,125	1,998
Contractual relationship [Member]
Gross carrying amount and accumulated amortization for each major class of definite-lived intangible asset
Carrying amount	14,370	14,517	450
Accumulated amortization	(1,451)	(1,075)	(25)
Net Book Value	12,919	13,442	425
Internally developed software [Member]
Gross carrying amount and accumulated amortization for each major class of definite-lived intangible asset
Carrying amount	18,133	1,344	0
Accumulated amortization	(127)	(19)	0
Net Book Value	18,006	1,325	0
Other [Member]
Gross carrying amount and accumulated amortization for each major class of definite-lived intangible asset
Carrying amount	322	321	317
Accumulated amortization	(43)	(36)	(11)
Net Book Value	$ 279	$ 285	$ 306