Segments (Reconciliation of adjusted EBITDA to consolidated financial statements) (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended	3 Months Ended		9 Months Ended
	Aug. 14, 2013	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Reporting, Revenue Reconciling Item [Line Items]
Net income (loss), as reported		$ (5,513)	$ 40	$ (7,592)	$ (10,763)
Interest expense		892	1,022	3,150	3,070
Income tax expense (benefit)		1,989	(394)	1,076	(5,950)
Depreciation and amortization		3,032	2,778	9,058	8,839
Income (loss) from discontinued operations, net of tax		(90)	(289)	(341)	(48)
Restructuring expense		31	145	130	166
Management fees		239	330	1,205	1,097
Noncash stock compensation expense		309	389	573	1,069
Acquisition costs		0	0	257	46
Severance and other expense related to store closures and business optimization		229	231	721	1,035
Reduction of tax indemnification asset		0	0	0	(347)
IPO transaction-related costs	1,620	9,322	0	10,008	0
Other reconciling items [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Adjusted EBITDA		6,898	5,829	19,289	18,214
Operating Segments [Member] | Geographic divisions [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Depreciation and amortization		2,829	2,326	8,377	7,474
Adjusted EBITDA		16,757	9,419	36,129	16,087
Operating Segments [Member] | Other [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Depreciation and amortization		28	27	93	92
Adjusted EBITDA		$ 581	$ 662	$ 1,405	$ 1,035