Condensed Consolidated Balance Sheets - Unaudited - USD ($) $ in Thousands	Oct. 02, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 99,943	$ 13,535
Accounts receivable, net of provision for credit losses of $0.2 million and allowance for doubtful accounts of $2.4 million, respectively	151,201	191,985
Inventories	156,858	167,256
Contract assets	39,593	24,767
Refundable income taxes	6,521	0
Prepaid expenses and other current assets	44,537	17,852
Total current assets	498,653	415,395
Property, plant and equipment, net	249,982	246,185
Goodwill	851,679	839,617
Other intangible assets, net	759,419	775,784
Deferred income taxes	5,223	4,438
Operating lease assets	46,083	42,379
Other long-term assets	37,956	29,295
Total assets	2,448,995	2,353,093
Current liabilities:
Current portion of long-term debt	37,500	37,500
Accounts payable	55,397	64,975
Income taxes payable	1,068	3,023
Operating lease liabilities	8,287	7,507
Accrued expenses and other current liabilities	51,208	66,073
Total current liabilities	153,460	179,078
Long-term debt	801,607	777,272
Deferred income taxes	188,788	187,978
Operating lease liabilities	39,030	37,114
Other long-term liabilities	33,113	19,163
Total liabilities	1,215,998	1,200,605
Commitments and contingencies (Note 10)
Stockholders’ equity:
Common stock, $0.001 par value; 100,000,000 shares authorized; 32,875,166 and 32,847,017 shares issued, respectively; 32,875,166 and 32,700,471 shares outstanding, respectively	33	33
Additional paid-in capital	698,654	701,018
Treasury stock, at cost, no shares as of October 2, 2020 and 146,546 shares as of December 31, 2019	0	(8,809)
Retained earnings	502,089	440,258
Accumulated other comprehensive income	32,221	19,988
Total stockholders’ equity	1,232,997	1,152,488
Total liabilities and stockholders’ equity	$ 2,448,995	$ 2,353,093