Goodwill and intangible assets (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Goodwill and Intangible Assets

A summary of goodwill and intangible assets at December 31, 2018 and 2017 is as follows:

December 31, 2018	Weighted average amortization period (years)	Gross carrying amount		Accumulated amortization			Net carrying Amount
Customer relationships	11.0	$	173,063	(99,439		)	$	73,624
Noncompete agreements	5.0	14,500		(14,500		)	—
Favorable leases	8.0	4,017		(2,345		)	1,672
Order backlog	0.4	3,400		(3,400		)	—
Reacquired franchise rights	7.0	21,349		(8,615		)	12,734
		216,329		(128,299		)	88,030
Indefinite-lived intangible:
Trade and brand names	N/A	146,300		—			146,300
Total intangible assets		$	362,629	$	(128,299	)	$	234,330
Goodwill		$	199,513	$	—		$	199,513

December 31, 2017	Weighted average amortization period (years)	Gross carrying amount		Accumulated amortization			Net carrying Amount
Customer relationships	11.1	$	171,782	(86,501		)	$	85,281
Noncompete agreements	5.0	14,500		(14,500		)	—
Favorable leases	7.5	2,935		(1,972		)	963
Order backlog	0.4	3,400		(3,400		)	—
Reacquired franchise rights	5.8	8,950		(5,837		)	3,113
		201,567		(112,210		)	89,357
Indefinite-lived intangible:
Trade and brand names	N/A	146,300		—			146,300
Total intangible assets		$	347,867	$	(112,210	)	$	235,657
Goodwill		$	176,981	$	—		$	176,981

Summary of Amortization expenses

The anticipated annual amortization expense to be recognized in future years as of December 31, 2018 is as follows:

	Amount
2019	$	16,153
2020	14,302
2021	14,276
2022	14,467
2023	14,316
Thereafter	14,516
Total	$	88,030

Summary of Goodwill

A rollforward of goodwill during the years ended December 31, 2018 or 2017 is as follows:

	Franchise	Corporate-owned stores	Equipment	Total
As of December 31, 2016	16,938	67,377	92,666	176,981
Additions	—	—	—	—
As of December 31, 2017	16,938	67,377	92,666	176,981
Acquisition of franchisee-owned stores	—	22,532	—	22,532
As of December 31, 2018	16,938	89,909	92,666	199,513

The following table summarizes the Company’s goodwill by reportable segment:

	December 31, 2018		December 31, 2017
Franchise	$	16,938	$	16,938
Corporate-owned stores	89,909		67,377
Equipment	92,666		92,666
Total consolidated goodwill	$	199,513	$	176,981