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9. Other Income and Expenses (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Interest and investment income $ (700) $ (800) $ (8,700) $ (10,000)
Net realized gain on investments 0 0 (300) 0
Miscellaneous other expense (income) items, net 0 200 0 300
Other (income) expense, net $ 732 $ 613 $ 8,992 $ 9,662