Long-term Debt and Short-term Borrowings (Tables)

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

Long-term debt at December 31, 2017 and 2016 is presented in the following table.

(in thousands)	2017		2016
Parent Company:
3.125% senior notes, due November 1, 2022, $300 million par value at December 31, 2017 with semi-annual interest payments and principal to be paid at maturity	$	296,971	$	—
5.75% fixed to adjustable rate subordinated notes issued December 7, 2015, due December 15, 2025, $250 million par value with semi-annual interest payments at 5.75% for the first five years and quarterly payments thereafter at an adjustable rate equal to the then-current three month LIBOR rate + 418.2 basis points and principal to be paid at maturity	247,618		247,136
LIBOR + 1.80% debentures, due April 19, 2035, $10 million par value with quarterly interest payments and principal to be paid at maturity (rate of 3.39% at December 31, 2017 and 2.76% at December 31, 2016)	10,000		10,000
5.125% subordinated notes, matured June 15, 2017, $278.6 million par value at December 31, 2016	—		278,480
7.875% senior notes, due February 15, 2019, $300 million par value	—		297,763
Hedge-related basis adjustment(1)	—		873
Total long-term debt — Parent Company	554,589		834,252
Synovus Bank:
FHLB advances with interest and principal payments due at various maturity dates through 2022 and interest rates ranging from 1.42% to 1.43% at December 31, 2017 (weighted average interest rate of 1.43% and 0.64% at December 31, 2017 and 2016, respectively)	1,150,000		1,325,000
Capital lease with interest and principal payments due at various dates through 2031 (rate of 1.59% at both December 31, 2017 and 2016)	1,549		1,629
Total long-term debt — Synovus Bank	1,151,549		1,326,629
Total long-term debt	$	1,706,138	$	2,160,881

⁽¹⁾ Unamortized balance of terminated interest rate swaps reflected in debt for financial reporting purposes.

Schedule of Principal Payments on Long-term Debt

Contractual annual principal payments on long-term debt for the next five years and thereafter are shown on the following table.

(in thousands)	Parent Company		Synovus Bank		Total
2018	$	—	$	100,089	$	100,089
2019	—		90		90
2020	—		350,092		350,092
2021	—		450,096		450,096
2022	300,000		250,107		550,107
Thereafter	260,000		1,075		261,075
Total	$	560,000	$	1,151,549	$	1,711,549

Components of Short-term Borrowings

The following table sets forth certain information regarding federal funds purchased and other securities sold under repurchase agreements.

(dollars in thousands)	2017			2016			2015
Total balance at December 31,	$	161,190		$	159,699		$	177,025
Weighted average interest rate at December 31,	0.18		%	0.08		%	0.08		%
Maximum month end balance during the year	$	225,475		$	286,175		$	250,453
Average amount outstanding during the year	184,093			216,593			205,305
Weighted average interest rate during the year	0.11		%	0.09		%	0.08		%