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Other Noncurrent Assets (Tables)
9 Months Ended
Sep. 30, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Schedule of Other Noncurrent Assets
Other noncurrent assets include the following: 
September 30,
2020
September 30,
2019
December 31,
2019
 (In thousands)
Identifiable intangible assets (net of accumulated amortization of $277.5 million, $238.1 million, and $248.0 million, respectively)$519,861 $552,332 $553,114 
Deferred income taxes60,850 63,551 67,900