Long-term Borrowings (Tables)

12 Months Ended

Dec. 31, 2018

Debt Disclosure [Abstract]

Schedule of long-term borrowings

Long-term borrowings were as follows:

		At December 31,
		2018								2017
(Dollars in thousands)	Stated Maturity	Amount			Stated Rate					Amount			Stated Rate
Federal Home Loan Bank advances	2019	$	—					—	%	$	600,000		1.40	%	-	1.75	%
	2020	1,100,000			2.55	%	-	2.79		275,000			1.76		-	1.78
Subtotal		1,100,000								875,000
Subordinated bank notes	2022	109,095						6.25		108,867						6.25
	2025	148,461						4.60		148,252						4.60
Hedge-related basis adjustment(1)		(4,165		)						(2,157		)
Subtotal		253,391								254,962
Discounted lease rentals	2018	—						—		52,347			2.55		-	7.95
	2019	41,605			2.53		-	6.00		34,978			2.53		-	6.00
	2020	28,258			2.64		-	6.50		19,736			2.64		-	6.50
	2021	16,781			2.88		-	5.82		10,077			2.88		-	5.00
	2022	5,765			3.04		-	5.95		2,349			3.04		-	5.43
	2023	567			4.89		-	6.07		—						—
Subtotal		92,976								119,487
Capital lease obligation	2019	67						3.73		—						—
	2020	86						3.73		—						—
	2021	89						3.73		—						—
	2022	93						3.73		—						—
	2023	105						3.73		—						—
	2024 - 2038	2,665						3.73		—						—
Subtotal		3,105								—
Total long-term borrowings		$	1,449,472							$	1,249,449

(1) Related to subordinated bank notes with a stated maturity of 2025.