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Restructuring and integration expense (Tables)
6 Months Ended
Jun. 30, 2021
Restructuring and Related Activities [Abstract]  
Restructuring and integration expense
Restructuring and integration expense is reflected on the consolidated statements of comprehensive income (loss) as follows:
 Quarter Ended
June 30,
Six Months Ended
June 30,
(in thousands)2021202020212020
Total cost of revenue$615 $28 $1,514 $857 
Operating expenses11,364 20,354 25,677 38,008 
Restructuring and integration expense$11,979 $20,382 $27,191 $38,865 
Restructuring and integration expense for each period was comprised of the following:
 Quarter Ended
June 30,
Six Months Ended
June 30,
(in thousands)2021202020212020
External consulting fees$5,540 $11,337 $12,923 $22,238 
Internal labor2,480 1,128 4,520 2,981 
Employee severance benefits1,018 5,035 1,875 10,118 
Other2,941 2,882 7,873 3,528 
Restructuring and integration expense$11,979 $20,382 $27,191 $38,865 
Changes in restructuring and integration accruals
Changes in our restructuring and integration accruals were as follows:
(in thousands)Employee severance benefits
Balance, December 31, 2020
$6,798 
Charges3,127 
Reversals(1,252)
Payments(6,193)
Balance, June 30, 2021
$2,480