Premises and Equipment

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Premises and Equipment

Premises and Equipment

Premises and equipment at December 31, 2017 and 2016 consisted of the following:

	December 31,
(Dollars in thousands)	2017			2016
Computer software	$	203,359		$	189,867
Computer hardware	63,881			56,215
Leasehold improvements	89,225			70,909
Furniture and equipment	38,146			31,886
Total	394,611			348,877
Accumulated depreciation and amortization	(265,929		)	(228,194		)
Premises and equipment, net	$	128,682		$	120,683

Depreciation and amortization expense for premises and equipment was $38.0 million, $33.9 million and $28.3 million in 2017, 2016 and 2015, respectively.