Income Taxes Deferred Tax Asset/Liability Reconciliation (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Deferred Tax Temporary Differences [Line Items]
Deferred Tax Assets, Purchase Accounting Adjustment - Fair Value	$ 30,267	$ 97,384
Deferred Tax Assets, Other	35,483	15,053
Deferred Tax Assets, Valuation Allowance		1,222
Market value difference of loan portfolio	110,669
Income tax benefits from uncertain tax positions	40,167	37,882
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	21,146	4,609
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	2,389	1,676
Borrowing costs	10,178	9,502
Purchase accounting premium – payables	4,569	16,468
Total deferred tax assets before valuation allowance	254,868	182,574
Deferred Tax Assets, Net of Valuation Allowance	254,868	181,352
Depreciable assets	71,043	10,689
Fee income	31,099	28,883
Capitalized direct loan origination costs	16,566	9,668
Intangible assets	12,559	6,938
Deferred gain on debt repurchase	7,791	9,303
Market value difference of loan portfolio		3,045
Other	8,735	4,142
Total deferred tax liabilities	147,793	72,668
Deferred Tax Assets, Net	$ 107,075	$ 108,684