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Restructuring and integration expense (Tables)
3 Months Ended
Mar. 31, 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
March 31,
(in thousands)20212020
Total cost of revenue$899 $829 
Operating expenses14,313 17,654 
Restructuring and integration expense$15,212 $18,483 
Restructuring and integration expense for each period was comprised of the following:
 Quarter Ended
March 31,
(in thousands)20212020
External consulting fees$7,383 $10,901 
Internal labor2,041 1,853 
Employee severance benefits857 5,083 
Other4,931 646 
Restructuring and integration expense$15,212 $18,483 
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 
Charges1,877 
Reversals(1,020)
Payments(5,701)
Balance, March 31, 2021
$1,954