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Restructuring Charges - Narrative (Details)
$ in Thousands
3 Months Ended 9 Months Ended 24 Months Ended
Sep. 30, 2017
USD ($)
Sep. 30, 2016
USD ($)
Sep. 30, 2017
USD ($)
Sep. 30, 2016
USD ($)
Dec. 31, 2016
USD ($)
center
Restructuring Cost and Reserve [Line Items]          
Restructuring recoveries $ 0 $ (85) $ 0 $ (85)  
Facility closing [Member]          
Restructuring Cost and Reserve [Line Items]          
Number of financial centers closed | center         5
Banking [Member]          
Restructuring Cost and Reserve [Line Items]          
Restructuring recoveries         $ 3,400