Revenue (Tables)

3 Months Ended

Mar. 31, 2021

Revenue From Contract With Customer [Abstract]

Disaggregation of revenue

Disaggregation of revenue

In the following tables, revenue is disaggregated by market sector. The tables also include a reconciliation of the disaggregated revenue with the reportable operating segments.

	Reportable Operating Segments
	Three Months Ended March 31, 2021
(in thousands)	Americas		Asia		Europe		Total
Market Sector:
Industrials	$	20,996	$	55,410	$	19,046	$	95,452
A&D		83,487		—		5,894		89,381
Medical		47,424		40,784		19,982		108,190
Semi-Cap		48,866		48,761		15,483		113,110
Computing		35,338		8,348		—		43,686
Telecommunications		29,958		25,719		225		55,902
External revenue		266,069		179,022		60,630		505,721
Elimination of intersegment sales		10,769		9,282		250		20,301
Segment revenue	$	276,838	$	188,304	$	60,880	$	526,022

	Three Months Ended March 31, 2020
(in thousands)	Americas		Asia		Europe		Total
Market Sector:
Industrials	$	33,945	$	48,225	$	20,656	$	102,826
A&D		113,012	—			6,188		119,200
Medical		69,379		44,203		4,394		117,976
Semi-Cap		30,449		37,292		14,979		82,720
Computing		30,074		6,527	—			36,601
Telecommunications		26,649		28,659		333		55,641
External revenue		303,508		164,906		46,550		514,964
Elimination of intersegment sales		10,888		6,703		450		18,041
Segment revenue	$	314,396	$	171,609	$	47,000	$	533,005

Significant Changes in Contract Assets

Significant changes in the contract asset balance during the period are as follows:

	Three Months Ended March 31,
(in thousands)	2021			2020
Beginning balance as of December 31	$	142,779		$	161,061
Revenue recognized		455,753			464,727
Amounts collected or invoiced		(450,327	)		(465,826	)
Ending balance as of March 31	$	148,205		$	159,962