Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Assets
Cash and due from banks	$ 456,917	$ 305,357
Unrestricted short-term investments	33,369	37,967
Cash and cash equivalents	490,286	343,324
Interest-bearing deposits held by consolidated variable interest entities that can be used only to settle obligations of the consolidated variable interest entities	1,554	2,347
Restricted short-term investments	43,926	42,913
Available-for-sale securities	2,183,093	2,375,224
Restricted investment in bank stocks	141,689	158,232
Loans and leases, net of deferred costs and fees	13,600,254	13,503,392
Loans held by consolidated variable interest entities that can be used only to settle obligations of the consolidated variable interest entities	66,899	72,694
Less: Allowance for loan and lease losses	144,483	157,608
Net loans and leases	13,522,670	13,418,478
Premises and equipment, net	169,975	173,542
Other real estate and foreclosed assets	11,102	17,573
Accrued interest receivable	38,878	41,690
Bank-owned life insurance	450,318	449,320
Goodwill	1,275,439	1,275,439
Intangible assets with finite lives	28,579	32,262
Deferred income tax assets	7,357	6,472
Other assets	141,760	136,673
Total Assets	18,506,626	18,473,489
Deposits [Abstract]
Noninterest-bearing	1,935,635	1,913,526
Interest-bearing	11,379,359	10,955,846
Total deposits	13,314,994	12,869,372
Federal Home Loan Bank short-term borrowings	1,050,000	1,450,000
Other short-term borrowings	527,079	555,740
Federal Home Loan Bank long-term borrowings	77,302	81,282
Other long-term debt	175,222	250,227
Junior subordinated debentures	146,002	155,002
Long-term debt of consolidated variable interest entities for which creditors do not have recourse to Susquehanna's general credit	38,809	48,031
Accrued interest, taxes, and expenses payable	72,664	82,150
Deferred income tax liabilities	114,119	70,308
Other liabilities	194,043	193,790
Total Liabilities	15,710,234	15,755,902
Shareholders' Equity
Common stock, $2.00 par value, 400,000,000 shares authorized; Issued: 188,072,946 at June 30, 2014, and 187,676,711 at December 31, 2013	376,146	375,353
Treasury stock, at cost. 366,587 at June 30, 2014, and 313,568 at December 31, 2013	(3,075)	(2,531)
Additional paid-in capital	1,657,699	1,652,116
Retained earnings	794,864	744,215
Accumulated other comprehensive loss, net of taxes of $16,427 and $25,039, respectively	(29,242)	(51,566)
Total Shareholders' Equity	2,796,392	2,717,587
Total Liabilities and Shareholders' Equity	$ 18,506,626	$ 18,473,489