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Non-operating (loss) income
 6 Months Ended
Jun. 30, 2020
Non-operating (loss) income, net [Abstract]  
Other Income and Other Expense Disclosure Non-operating Income, Net
The following table presents the components of Non-operating income, net:
Three Months Ended
June 30,		Six Months Ended
June 30,
2020201920202019
(In thousands)
Interest income$2,274  $7,228  $6,695  $14,588  
Transition services income—  4,050  2,100  8,100  
Gain on sale of business5,153  43  5,611  753  
Other, net(24) 115  81  198  
Total non-operating income, net$7,403  $11,436  $14,487  $23,639  
The lower interest income during the three and six months ended June 30, 2020 reflects a decline in interest rates on our investments in debt securities. The transition services income relates to the divested security services business. The transition services agreement ended in February 2020. The gain on sale of business in 2020 represents the excess of the contingent consideration received related to the divested security services business compared to the estimated receivable.