Premises and Equipment

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Premises and Equipment Disclosure [Text Block]

(5) Premises and Equipment

Premises and equipment at December 31 are summarized as follows (in thousands):

	December 31,
	2015		2014
Land	$	72,612	$	71,371
Buildings and improvements	225,181		225,008
Software	142,476		120,010
Furniture and equipment	194,715		179,513
Construction in progress	39,886		21,805
Subtotal	674,870		617,707
Less accumulated depreciation	368,380		343,874
Total	$	306,490	$	273,833

Depreciation expense of premises and equipment was $34 million, $33 million and $30 million for the years ended December 31, 2015, 2014 and 2013, respectively.