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Goodwill and other intangible assets (Tables)
 9 Months Ended
Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
Other amortizable intangible assets
Other amortizable intangible assets were as follows:
 September 30, 2023September 30, 2022December 31, 2022
 (In thousands)
Customer relationships$10,450 $10,450 $10,450 
Less accumulated amortization7,924 5,834 6,356 
 2,526 4,616 4,094 
Noncompete agreements292 552 552 
Less accumulated amortization292 520 544 
— 32 8 
Total$2,526 $4,648 $4,102 
Estimated amortization expense Amortization expense for identifiable intangible assets as of September 30, 2023 is estimated to be as follows:
Remainder of 20232024202520262027Thereafter
(In thousands)
Amortization expense$522 $1,888 $116 $— $— $—