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Network
125 - Disclosure - Note 17 - Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive (Loss) Income (Details)
(http://www.bmtc.com/20161231/role/statement-note-17-accumulated-other-comprehensive-income-loss-components-of-accumulated-other-comprehensive-loss-income-details)
TableStatement [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000802681 (http://www.sec.gov/CIK)
Scenario [Axis]Scenario, Unspecified [Domain]
Statement [Line Items]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
2014-01-01 - 2014-12-31
Equity Components [Axis]Equity Components [Axis]Equity Components [Axis]
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]Equity Component [Domain]Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]Equity Component [Domain]Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]Equity Component [Domain]
Balance
774,000  
xsi:nil  
(1,186,000) 
(412,000) 
1,316,000  
(25,000) 
(12,995,000) 
(11,704,000) 
(857,000) 
743,000  
(5,451,000) 
(5,565,000) 
Net change
(2,005,000) 
xsi:nil  
8,000  
(1,997,000) 
(542,000) 
25,000  
11,809,000  
11,292,000  
2,173,000  
(768,000) 
(7,544,000) 
(6,139,000) 
Balance
(1,231,000) 
 
xsi:nil  
 
(1,178,000) 
 
(2,409,000) 
 
774,000  
 
xsi:nil  
 
(1,186,000) 
 
(412,000) 
 
1,316,000  
 
(25,000) 
 
(12,995,000) 
 
(11,704,000)