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Subsequent Event (Notes)
3 Months Ended
Mar. 31, 2019
Subsequent Events [Abstract]  
Subsequent Events [Text Block]
Subsequent Event

On April 22, 2019, the Company announced that its banking subsidiary, First Commonwealth Bank, has signed a definitive agreement to acquire 14 branches located in State College, Lock Haven, Williamsport and Lewisburg, Pennsylvania, with approximately $525 million of deposits and $120 million of retail and business loans from Santander Bank, N.A. The transaction is subject to regulatory approval and is expected to close in the third quarter of 2019.