Goodwill and Intangible Assets

12 Months Ended

Dec. 25, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

6. Goodwill and Intangible Assets

Goodwill

Goodwill included the following:

(in thousands)	December 25, 2021			December 26, 2020
Balance at beginning of period	$	91,080		$	74,458
Goodwill acquired		108,945			16,622
Measurement period adjustments for Dayton acquisition		(2,130	)		—
Foreign currency translation		(563	)		—
Balance at end of period	$	197,332		$	91,080

Intangible Assets

Intangible assets, subject to amortization, included the following:

			December 25, 2021						December 26, 2020
Intangible assets subject to amortization	Weighted Average Amortization Period (years)		Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Gross Carrying Value		Accumulated Amortization		Net Carrying Value
(dollars in thousands)
Customer relationships		18.6	$	149,150	$	12,139	$	137,011	$	25,050	$	7,141	$	17,909
Trade names		10.0		17,760		2,592		15,168		6,760		1,585		5,175
Product Portfolio		19.9		25,300		460		24,840		—		—		—
Technology		6.9		2,167		571		1,596		2,167		323		1,844
Other		2.7		430		236		194		430		151		279
Total			$	194,807	$	15,998	$	178,809	$	34,407	$	9,200	$	25,207

Amortization expense associated with intangible assets was $6.5 million, $3.4 million and $2.6 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively. The estimated future amortization expense for intangible assets as of December 25, 2021, is summarized as follows:

(in thousands)
2022	$	11,954
2023		11,954
2024		11,810
2025		11,453
2026		10,418
Thereafter		121,220
Total	$	178,809