Basis of presentation and summary of significant accounting policies (Policies)	6 Months Ended
	Jun. 30, 2015
Consolidation, Policy [Policy Text Block]	Principles of Consolidation and Basis of Presentation The consolidated interim financial statements have been prepared without audit. The consolidated statement of financial condition data at December 31, 2014 was derived from audited financial statements. The unaudited interim financial statements are, in the opinion of management, a fair statement of the results for the periods reported and include all necessary adjustments, all of a normal recurring nature, for a fair statement of such results. Certain reclassifications have been made to the 2014 consolidated financial statements and notes to the financial statements to conform with the 2015 presentation. As discussed in Note 4, current and prior periods presented in the consolidated statement of operations as well as the related note disclosures covering income and expense amounts have been retrospectively adjusted for the impact of the discontinued operations for comparative purposes. The consolidated statement of financial condition and related note disclosure for prior periods do not reflect the reclassification of BPNA’s assets and liabilities to discontinued operations. Certain information and note disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted from the unaudited financial statements pursuant to the rules and regulations of the Securities and Exchange Commission. Accordingly, these financial statements should be read in conjunction with the audited consolidated financial statements of the Corporation for the year ended December 31, 2014, included in the Corporation’s 2014 Annual Report (the “2014 Annual Report”). Operating results for the interim periods disclosed herein are not necessarily indicative of the results that may be expected for a full year or any future period.
Use of Estimates, Policy [Policy Text Block]	Use of Estimates in the Preparation of Financial Statements The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Business Combinations Policy [Policy Text Block]	Business Combination The Corporation determined that the acquisition of certain assets and assumption of certain liabilities in connection with the Doral Bank Transaction constitutes a business combination as defined by the Financial Accounting Standards Board (“FASB”) Codification (“ASC”) Topic 805 “Business Combinations”. The assets and liabilities, both tangible and intangible, were initially recorded at their estimated fair values. Fair values were determined based on the requirements of FASB Codification Topic 820 “Fair Value Measurements”. These fair value estimates are preliminary and subject to refinement for up to one year after the closing date of the acquisition as additional information regarding the closing date fair value becomes available. Acquisition-related costs are expensed as incurred. Refer to Note 5, Business Combination, for additional information of assets acquired and liabilities assumed in connection with this transaction.
Loans Acquired In F D I C Assisted Transaction [Policy Text Block]	Loans acquired as part of the Doral Bank Transaction Loans acquired in a business acquisition are recorded at their fair value at the acquisition date. Credit discounts are included in the determination of fair value; therefore, an allowance for loan losses is not recorded at the acquisition date. Approximately $162 million of residential mortgage loans acquired as part of the Doral Bank Transaction were considered impaired. Accordingly, the Corporation applied the guidance of ASC Subtopic 310-30. Under this guidance, the loans acquired from the FDIC were aggregated into pools based on similar characteristics, including factors such as loan type, interest rate type, accruing status, and amortization type. Each loan pool is accounted for as a single asset with a single composite interest rate and an aggregate expectation of cash flows. Under ASC Subtopic 310-30, the difference between the undiscounted cash flows expected at acquisition and the fair value in the loans, or the “accretable yield,” is recognized as interest income using the effective yield method over the estimated life of the loan if the timing and amount of the future cash flows of the pool is reasonably estimable. The non-accretable difference represents the difference between contractually required principal and interest and the cash flows expected to be collected. Subsequent to the acquisition date, increases in cash flows over those expected at the acquisition date are recognized as interest income prospectively. Decreases in expected cash flows after the acquisition date are recognized by recording an allowance for loan losses.