Subsequent Events (Details) - $ / shares	Jan. 30, 2017	Dec. 31, 2016	Dec. 31, 2015
Bryn Mawr Bank Corporation | Subsequent Event
Common stock, par value (in dollars per share)	$ 1.00
Class A - Common stock
Common stock, par value (in dollars per share)		$ 2	$ 2
Class A - Common stock | Bryn Mawr Bank Corporation | Subsequent Event
Number of shares received - per share	0.1025
Class B - Common stock
Common stock, par value (in dollars per share)		$ 0.10	$ 0.10
Class B - Common stock | Bryn Mawr Bank Corporation | Subsequent Event
Number of shares received - per share	0.1179