Goodwill and Other Intangible Assets, Net - Components of Other Intangible Assets (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2019	Dec. 31, 2018
Schedule of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]
Definite life, Accumulated Amortization	$ (17,849)	$ (15,251)
Definite life, Weighted- Average Remaining Life (Years)	10 months 24 days	1 year 2 months 12 days
Below market leases, Gross Amount	$ 941	$ 941
Below market leases, Accumulated Amortization	(96)	(45)
Below market leases. Net Carrying Amount	845	896
Gross Amount	53,097	51,020
Net Carrying Amount	35,248	35,769
Trademark and Trade Names [Member]
Schedule of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]
Definite life, Gross Amount	10,153	9,316
Definite life, Accumulated Amortization	(7,141)	(6,706)
Definite life, Net Carrying Amount	$ 3,012	$ 2,610
Definite life, Weighted- Average Remaining Life (Years)	6 months	6 months
Non-contractual Customers [Member]
Schedule of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]
Definite life, Gross Amount	$ 11,532	$ 11,323
Definite life, Accumulated Amortization	(4,898)	(3,890)
Definite life, Net Carrying Amount	$ 6,634	$ 7,433
Definite life, Weighted- Average Remaining Life (Years)	1 year 4 months 24 days	1 year 9 months 18 days
License Agreements (GSE) [Member]
Schedule of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]
Definite life, Gross Amount	$ 4,981	$ 4,981
Definite life, Accumulated Amortization	(2,792)	(2,292)
Definite life, Net Carrying Amount	$ 2,189	$ 2,689
Definite life, Weighted- Average Remaining Life (Years)	2 months 12 days	4 months 24 days
Non-compete Agreements [Member]
Schedule of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]
Definite life, Gross Amount	$ 6,267	$ 6,267
Definite life, Accumulated Amortization	(1,949)	(1,469)
Definite life, Net Carrying Amount	$ 4,318	$ 4,798
Definite life, Weighted- Average Remaining Life (Years)	1 year 2 months 12 days	1 year 4 months 24 days
Contractual Customers [Member]
Schedule of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]
Definite life, Gross Amount	$ 2,483	$ 1,452
Definite life, Accumulated Amortization	(973)	(849)
Definite life, Net Carrying Amount	$ 1,510	$ 603
Definite life, Weighted- Average Remaining Life (Years)	1 month 6 days	1 month 6 days
Trademark and Trade Names [Member]
Schedule of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]
Indefinite life, intangible assets	$ 11,350	$ 11,350
License Agreements (GSE) [Member]
Schedule of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]
Indefinite life, intangible assets	$ 5,390	$ 5,390

Schedule of acquired finite and indefinite lived intangible asset by major class.

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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-Topic 350
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Amount of accumulated amortization of leases acquired as part of a real property acquisition at below market lease rate with a finite life.

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Amount before amortization of leases acquired as part of a real property acquisition at below market lease rate with a finite life.

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Amount after amortization of leases acquired as part of a real property acquisition at below market lease rate with a finite life.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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Amount before accumulated amortization of intangible assets, excluding goodwill.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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