Consolidated Statements of Cash Flows (USD $)	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Operating activities:
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 35,635,000	$ 17,843,000
Depreciation, Amortization and Accretion, Net	18,023,000	15,179,000
Allowance for Loan and Lease Losses, Period Increase (Decrease)	4,386,000	1,295,000
Provision for Loan and Lease Losses	5,117,000	835,000
Gains (Losses) on Sales of Other Real Estate	2,699,000	2,602,000
Provision for Loan Losses Expensed	368,000	1,477,000
Gain (Loss) on Sale of Loans and Leases	(379,000)	504,000
Gain (Loss) on Disposition of Property Plant Equipment	1,571,000	11,000
Gain (Loss) on Investments, Excluding Other than Temporary Impairments	(4,841,000)	(409,000)
Foreign Currency Transaction Gain (Loss), before Tax	1,572,000	0
Amortization of deferred loan fees and discounts	2,546,000	0
Unrealized Gain (Loss) on Derivatives	(1,586,000)	0
Share-based Compensation	30,696,000	4,145,000
Goodwill, Period Increase (Decrease)	6,645,000	0
Goodwill, Impairment Loss	(6,645,000)
Excess Tax Benefit from Share-based Compensation, Operating Activities	4,294,000	778,000
Increase (Decrease) in Income Taxes	25,141,000	(3,860,000)
Increase Decrease In FDIC Loss Sharing Asset	16,690,000	9,463,000
Increase (Decrease) in Other Operating Assets	(15,895,000)	(7,580,000)
Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities	(87,303,000)	(6,809,000)
Net Cash Provided by (Used in) Operating Activities, Continuing Operations	50,618,000	42,009,000
Investing Activities:
Cash Acquired from Acquisition	346,047,000	273,013,000
Payments for (Proceeds from) Loans and Leases	16,443,000	(200,023,000)
Proceeds from Sale of Loans Held-for-investment	22,711,000	9,455,000
Proceeds from Sale and Maturity of Available-for-sale Securities	61,914,000	193,561,000
Proceeds from Sale of Available-for-sale Securities	466,534,000	12,810,000
Capitalized Costs To Complete Other Real Estate Owned	163,421,000	388,946,000
Proceeds from Sale of Other Receivables	482,724,000	0
Payments to Acquire Property, Plant, and Equipment	(24,016,000)	(7,515,000)
Proceeds from Sale of Property, Plant, and Equipment	11,450,000	15,869,000
Net Cash Provided by (Used in) Investing Activities	(1,967,000)	(1,301,000)
Proceeds from Sale of Real Estate Held-for-investment	3,753,000	22,000
Purchases Of Equipment Leased To Others Under Operating Leases	(30,462,000)	0
Payments to Acquire Available-for-sale Securities	(1,267,780,000)	(322,021,000)
Financing activities:
Increase Decrease In Noninterest Bearing Domestic and Foreign Deposits	286,370,000	(9,132,000)
Increase Decrease In Interest Bearing Domestic And Foreign Deposits	(232,598,000)	(277,868,000)
Proceeds from (Repayments of) Debt	(1,101,197,000)	(2,833,000)
Payments for Repurchase of Common Stock	22,307,000	2,267,000
Excess Tax Benefit from Share-based Compensation, Financing Activities	4,294,000	778,000
Payments of Ordinary Dividends, Common Stock	37,017,000	18,285,000
Net Cash Provided by (Used in) Financing Activities, Continuing Operations	(1,102,455,000)	(309,607,000)
Noncash transactions from investing activities:
Interest Paid	(12,437,000)	(7,569,000)
Proceeds from Income Tax Refunds	12,613,000	13,573,000
Real Estate Owned, Transfer from Real Estate Owned	667,000	9,090,000
Net Cash Provided by (Used in) Continuing Operations	(215,943,000)	(54,423,000)
Cash and Cash Equivalents, at Carrying Value	363,365,000	218,827,000
Capitalsource, Inc. [Member]
Noncash transactions from investing activities:
Stock Issued	2,594,070,000	0
First California Financial Group, Inc. [Domain]
Noncash transactions from investing activities:
Stock Issued	$ 0	$ 242,268,000