Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jan. 01, 2022	Jan. 02, 2021	Dec. 28, 2019
Cash flows from operating activities:
Net income	$ 35,196	$ 45,108	$ 43,688
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	30,487	24,014	18,876
Amortization	21,082	18,825	15,856
Impairment of trade name		8,000
Non-cash portion of restructuring costs and charges		2,442
Provision for allowance for credit losses	3,834	996	1,553
Stock-based compensation	7,819	5,458	3,923
Amortization and write-offs of deferred financing costs	978	1,206	1,674
Debt extinguishment costs	25,472		1,512
Deferred income taxes	7,632	(593)	4,410
Loss (gain) on sales of assets	261	(291)	143
Change in operating assets and liabilities (net of acquisition effects):
Accounts receivable	(34,390)	(13,775)	12,682
Inventories	(15,984)	(14,793)	815
Contract assets, net, prepaid expenses, other current and other assets	(5,958)	(11,342)	(4,429)
Accounts payable and accrued liabilities	(12,750)	10,240	(19,487)
Net cash provided by operating activities	63,679	75,495	81,216
Cash flows from investing activities:
Purchases of property, plant and equipment	(33,424)	(24,800)	(31,268)
Business acquisitions	(220,676)	(90,368)
Proceeds from disposals of assets	187	766	71
Net cash used in investing activities	(253,913)	(114,402)	(31,197)
Cash flows from financing activities:
Proceeds from issuance of senior notes	638,300	53,188
Payments of senior notes	(425,000)
Payment of call-premium on redemption of senior notes	(21,518)
Proceeds from issuance of term loan debt	60,000		64,000
Payments of term loan debt	(54,000)	(10,000)	(64,138)
Payments of financing costs	(10,675)	(1,266)	(854)
Purchases of treasury stock under repurchase program			(5,550)
Purchases of treasury stock relating to tax withholdings on employee equity awards	(1,648)	(815)	(505)
Proceeds from exercise of stock options	138	572	1,562
Proceeds from issuance of common stock under ESPP	463	305	59
Net cash provided by (used in) financing activities	186,060	41,984	(5,426)
Net (decrease) increase in cash and cash equivalents	(4,174)	3,077	44,593
Cash and cash equivalents at beginning of year	100,320	97,243	52,650
Cash and cash equivalents at end of year	$ 96,146	$ 100,320	$ 97,243