Intangible Assets and Goodwill - Intangibles (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Intangible assets
Store impairment charges	$ 2,177	$ 0
Gross Amount	100,605
Definite, Gross Amount		45,837
Definite, Accumulated Amortization	8,719	6,014
Definite, Net Amount	26,406	39,823
Net Amount	91,886	39,823
Amortization expense related to the intangible assets	2,700	1,300
Estimated amortization expense
2017	2,965
2018	2,965
2019	2,945
2020	2,926
2021	2,921
Thereafter	11,684
Total	26,406	39,823
Trade names.
Intangible assets
Definite, Gross Amount		26,037
Definite, Net Amount		26,037
Indefinite, Amount	65,480
Estimated amortization expense
Total		$ 26,037
Customer relationships
Intangible assets
Amortization period		15 years
Definite, Gross Amount	34,997	$ 19,800
Definite, Accumulated Amortization	8,699	6,014
Definite, Net Amount	26,298	13,786
Estimated amortization expense
Total	$ 26,298	$ 13,786
Non compete agreements
Intangible assets
Amortization period	3 years
Definite, Gross Amount	$ 128
Definite, Accumulated Amortization	20
Definite, Net Amount	108
Estimated amortization expense
Total	$ 108
Minimum | Customer relationships
Intangible assets
Amortization period	7 years
Maximum | Customer relationships
Intangible assets
Amortization period	15 years