Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The following table summarizes the change in the Company's goodwill for the year ended December 31, 2020:

	Goodwill
(in thousands)	Gross		Accumulated Impairment		Total
Balance, December 31, 2019	$	1,900,727	$	(113,076)	$	1,787,651
Goodwill impairment	—		(1,784,936)		(1,784,936)
Balance, December 31, 2020	$	1,900,727	$	(1,898,012)	$	2,715

As of December 31, 2020, 2019, and 2018, goodwill was allocated to the reporting units as follows:

	Goodwill
(in thousands)	Wholesale Bank		Wealth Management		Retail Bank		Total
Allocated goodwill, December 31, 2019 and 2018	$	1,033,744	$	2,715	$	751,192	$	1,787,651
Goodwill impairment	(1,033,744)		—		(751,192)		(1,784,936)
Allocated goodwill, December 31, 2020	$	—	$	2,715	$	—	$	2,715

Other Intangible Assets

The following table summarizes the changes in the Company's other intangible assets for the years ended December 31, 2018, 2019 and 2020.

	Other Intangible Assets
(in thousands)	Gross		Accumulated Amortization		Net
Balance, December 31, 2017	$	113,471	$	(83,341)	$	30,130
Amortization	—		(6,166)		(6,166)
Balance, December 31, 2018	113,471		(89,507)		23,964
Amortization	—		(5,618)		(5,618)
Balance, December 31, 2019	113,471		(95,125)		18,346
Amortization	—		(4,986)		(4,986)
Balance, December 31, 2020	$	113,471	$	(100,111)	$	13,360

Finite-lived Intangible Assets Amortization Expense

The table below presents the forecasted amortization expense for intangible assets at December 31, 2020:

(in thousands)
Year	Expected Amortization
2021	$	4,520
2022	4,095
2023	3,686
2024	1,059
2025	—
Thereafter	—
Total intangible assets	$	13,360