Allowance Movement (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								3 Months Ended														3 Months Ended														3 Months Ended														3 Months Ended												3 Months Ended										3 Months Ended												3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014 Non Covered Under Loss Sharing Agreements With F D I C [Member]	Dec. 31, 2013 Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Covered Under Loss Sharing Agreements With F D I C [Member]	Dec. 31, 2013 Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 PUERTO RICO	Dec. 31, 2013 PUERTO RICO	Mar. 31, 2014 PUERTO RICO Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2013 PUERTO RICO Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 PUERTO RICO Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2013 PUERTO RICO Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 UNITED STATES Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2013 UNITED STATES Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Commercial Portfolio Segment Member	Mar. 31, 2013 Commercial Portfolio Segment Member	Mar. 31, 2014 Commercial Portfolio Segment Member Non Covered Under Loss Sharing Agreements With F D I C [Member]	Dec. 31, 2013 Commercial Portfolio Segment Member Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Commercial Portfolio Segment Member Covered Under Loss Sharing Agreements With F D I C [Member]	Dec. 31, 2013 Commercial Portfolio Segment Member Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Commercial Portfolio Segment Member PUERTO RICO	Dec. 31, 2013 Commercial Portfolio Segment Member PUERTO RICO	Mar. 31, 2014 Commercial Portfolio Segment Member PUERTO RICO Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2013 Commercial Portfolio Segment Member PUERTO RICO Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Commercial Portfolio Segment Member PUERTO RICO Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2013 Commercial Portfolio Segment Member PUERTO RICO Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Commercial Portfolio Segment Member UNITED STATES Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2013 Commercial Portfolio Segment Member UNITED STATES Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Commercial Real Estate Construction Financing Receivable Member	Mar. 31, 2013 Commercial Real Estate Construction Financing Receivable Member	Mar. 31, 2014 Commercial Real Estate Construction Financing Receivable Member Non Covered Under Loss Sharing Agreements With F D I C [Member]	Dec. 31, 2013 Commercial Real Estate Construction Financing Receivable Member Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Commercial Real Estate Construction Financing Receivable Member Covered Under Loss Sharing Agreements With F D I C [Member]	Dec. 31, 2013 Commercial Real Estate Construction Financing Receivable Member Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Commercial Real Estate Construction Financing Receivable Member PUERTO RICO	Dec. 31, 2013 Commercial Real Estate Construction Financing Receivable Member PUERTO RICO	Mar. 31, 2014 Commercial Real Estate Construction Financing Receivable Member PUERTO RICO Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2013 Commercial Real Estate Construction Financing Receivable Member PUERTO RICO Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Commercial Real Estate Construction Financing Receivable Member PUERTO RICO Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2013 Commercial Real Estate Construction Financing Receivable Member PUERTO RICO Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Commercial Real Estate Construction Financing Receivable Member UNITED STATES Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2013 Commercial Real Estate Construction Financing Receivable Member UNITED STATES Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Mortgages [Member]	Mar. 31, 2013 Mortgages [Member]	Mar. 31, 2014 Mortgages [Member] Non Covered Under Loss Sharing Agreements With F D I C [Member]	Dec. 31, 2013 Mortgages [Member] Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Mortgages [Member] Covered Under Loss Sharing Agreements With F D I C [Member]	Dec. 31, 2013 Mortgages [Member] Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Mortgages [Member] PUERTO RICO	Dec. 31, 2013 Mortgages [Member] PUERTO RICO	Mar. 31, 2014 Mortgages [Member] PUERTO RICO Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2013 Mortgages [Member] PUERTO RICO Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Mortgages [Member] PUERTO RICO Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2013 Mortgages [Member] PUERTO RICO Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Mortgages [Member] UNITED STATES Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2013 Mortgages [Member] UNITED STATES Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Legacy [Member]	Mar. 31, 2013 Legacy [Member]	Mar. 31, 2014 Legacy [Member] Non Covered Under Loss Sharing Agreements With F D I C [Member]	Dec. 31, 2013 Legacy [Member] Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Legacy [Member] Covered Under Loss Sharing Agreements With F D I C [Member]	Dec. 31, 2013 Legacy [Member] Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Legacy [Member] UNITED STATES Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2013 Legacy [Member] UNITED STATES Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Finance Leases Portfolio Segment Member	Mar. 31, 2013 Finance Leases Portfolio Segment Member	Mar. 31, 2014 Finance Leases Portfolio Segment Member Non Covered Under Loss Sharing Agreements With F D I C [Member]	Dec. 31, 2013 Finance Leases Portfolio Segment Member Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Finance Leases Portfolio Segment Member Covered Under Loss Sharing Agreements With F D I C [Member]	Dec. 31, 2013 Finance Leases Portfolio Segment Member Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Finance Leases Portfolio Segment Member PUERTO RICO	Dec. 31, 2013 Finance Leases Portfolio Segment Member PUERTO RICO	Mar. 31, 2014 Finance Leases Portfolio Segment Member PUERTO RICO Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2013 Finance Leases Portfolio Segment Member PUERTO RICO Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Finance Leases Portfolio Segment Member PUERTO RICO Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2013 Finance Leases Portfolio Segment Member PUERTO RICO Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Consumer [Member]	Mar. 31, 2013 Consumer [Member]	Mar. 31, 2014 Consumer [Member] Non Covered Under Loss Sharing Agreements With F D I C [Member]	Dec. 31, 2013 Consumer [Member] Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Consumer [Member] Covered Under Loss Sharing Agreements With F D I C [Member]	Dec. 31, 2013 Consumer [Member] Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Consumer [Member] PUERTO RICO	Dec. 31, 2013 Consumer [Member] PUERTO RICO	Mar. 31, 2014 Consumer [Member] PUERTO RICO Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2013 Consumer [Member] PUERTO RICO Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Consumer [Member] PUERTO RICO Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2013 Consumer [Member] PUERTO RICO Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2014 Consumer [Member] UNITED STATES Non Covered Under Loss Sharing Agreements With F D I C [Member]	Mar. 31, 2013 Consumer [Member] UNITED STATES Non Covered Under Loss Sharing Agreements With F D I C [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	$ 640,555	$ 730,607	$ 542,575	$ 538,463	$ 97,773	$ 102,092	$ 532,513	$ 528,867	$ 426,775	$ 445,297	$ 102,092	$ 108,906	$ 111,688	$ 176,404	$ 217,180	$ 369,742	$ 172,014	$ 174,982	$ 38,589	$ 42,198	$ 162,723	$ 170,348	$ 128,150	$ 217,615	$ 42,198	$ 72,060	$ 46,832	$ 80,067	$ 24,833	$ 17,375	$ 5,302	$ 5,342	$ 15,966	$ 19,491	$ 21,045	$ 24,586	$ 5,095	$ 5,862	$ 19,491	$ 9,946	$ 247	$ 1,567	$ 192,935	$ 170,289	$ 162,963	$ 156,929	$ 38,848	$ 36,006	$ 176,644	$ 166,336	$ 130,330	$ 119,027	$ 36,006	$ 20,914	$ 26,599	$ 30,348	$ 13,704	$ 33,102	$ 13,272	$ 13,704	$ 0	$ 0	$ 13,704	$ 33,102	$ 10,622	$ 2,894	$ 10,483	$ 10,622	$ 0	$ 0	$ 10,483	$ 10,622	$ 10,622	$ 2,894	$ 0	$ 0	$ 181,281	$ 137,205	$ 178,541	$ 176,884	$ 4,370	$ 4,397	$ 161,618	$ 156,975	$ 152,578	$ 99,899	$ 4,397	$ 5,986	$ 24,306	$ 31,320
Provision for loan losses	73,072	223,856							53,915	204,292	25,714	17,556	(6,557)	2,008	12,553	131,814							11,157	128,877	4,039	6,156	(2,643)	(3,219)	15,973	8,003							(1,394)	2,742	17,567	5,792	(200)	(531)	19,918	33,943							15,982	28,212	4,498	1,810	(562)	3,921	(5,314)	(1,197)					(5,314)	(1,197)	517	1,985							517	1,985	0	0	29,425	49,308							27,653	42,476	(390)	3,798	2,162	3,034
Charge-offs	(112,773)	(138,385)							(61,422)	(80,737)	(32,310)	(26,953)	(19,041)	(30,695)	(38,167)	(56,151)							(22,117)	(32,446)	(7,968)	(10,565)	(8,082)	(13,140)	(23,397)	(11,388)							(416)	(1,629)	(22,981)	(9,759)	0	0	(11,920)	(23,838)							(8,726)	(17,759)	(1,656)	(2,062)	(1,538)	(4,017)	(3,445)	(6,341)					(3,445)	(6,341)	(967)	(1,543)							(967)	(1,543)	0	0	(34,877)	(39,124)							(29,196)	(27,360)	295	(4,567)	(5,976)	(7,197)
Recoveries	39,494	30,433							15,472	18,312	2,277	358	21,745	11,763	19,037	12,443							6,944	8,134	320	30	11,773	4,279	3,859	1,588							1,794	1,274	1,889	314	176	0	878	2,224							210	986	0	11	668	1,227	8,327	5,213					8,327	5,213	311	559							311	559	0	0	7,082	8,406							6,213	7,359	68	3	801	1,044
Net write-down related to loans sold	0	(163,143)							0	(163,143)			0	0	0	(161,297)							0	(161,297)			0	0	0	(1,846)							0	(1,846)			0	0	0	0							0	0			0	0	0	0					0	0	0	0							0	0			0	0							0	0			0	0
Balance at end of period	$ 640,348	$ 683,368	$ 542,575	$ 538,463	$ 97,773	$ 102,092	$ 532,513	$ 528,867	$ 434,740	$ 424,021	$ 97,773	$ 99,867	$ 107,835	$ 159,480	$ 210,603	$ 296,551	$ 172,014	$ 174,982	$ 38,589	$ 42,198	$ 162,723	$ 170,348	$ 124,134	$ 160,883	$ 38,589	$ 67,681	$ 47,880	$ 67,987	$ 21,268	$ 13,732	$ 5,302	$ 5,342	$ 15,966	$ 19,491	$ 21,045	$ 24,586	$ 5,079	$ 6,403	$ 15,966	$ 6,293	$ 223	$ 1,036	$ 201,811	$ 182,618	$ 162,963	$ 156,929	$ 38,848	$ 36,006	$ 176,644	$ 166,336	$ 137,796	$ 130,466	$ 38,848	$ 20,673	$ 25,167	$ 31,479	$ 13,272	$ 30,777	$ 13,272	$ 13,704	$ 0	$ 0	$ 13,272	$ 30,777	$ 10,483	$ 3,895	$ 10,483	$ 10,622	$ 0	$ 0	$ 10,483	$ 10,622	$ 10,483	$ 3,895	$ 0	$ 0	$ 182,911	$ 155,795	$ 178,541	$ 176,884	$ 4,370	$ 4,397	$ 161,618	$ 156,975	$ 157,248	$ 122,374	$ 4,370	$ 5,220	$ 21,293	$ 28,201