Loans Receivable and Allowance for Credit Losses (Details 10) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Allowance for loan losses
Beginning balance	$ 260,520
Charge-offs	(92)	$ (1,800)
Ending balance	263,094
CRE
Allowance for loan losses
Beginning balance	72,916
Ending balance	74,974
C&I
Allowance for loan losses
Beginning balance	142,167
Ending balance	137,510
Residential
Allowance for loan losses
Beginning balance	37,338
Ending balance	41,747
Consumer
Allowance for loan losses
Beginning balance	8,099
Ending balance	8,863
PCI Loans
Allowance for loan losses
Beginning balance	118
Ending balance	87
PCI Loans \| CRE
Allowance for loan losses
Beginning balance	112
Ending balance	86
PCI Loans \| C&I
Allowance for loan losses
Beginning balance	1
Ending balance	0
PCI Loans \| Residential
Allowance for loan losses
Beginning balance	5
Ending balance	1
PCI Loans \| Consumer
Allowance for loan losses
Beginning balance	0
Ending balance	0
Loans Receivable
Allowance for loan losses
Beginning balance	260,520	264,959
Provision for (reversal of) loan losses	8,015	386
Charge-offs	(7,209)	(6,054)
Recoveries	1,768	947
Net recoveries (charge-offs)	(5,441)	(5,107)
Ending balance	263,094	260,238
Loans Receivable \| PCI Loans
Allowance for loan losses
Beginning balance	118	359
Provision for (reversal of) loan losses	(31)	(31)
Charge-offs	0	0
Recoveries	0	0
Net recoveries (charge-offs)	0	0
Ending balance	87	328
Loans Receivable \| Non-PCI Loans
Allowance for loan losses
Beginning balance	260,402	264,600
Provision for (reversal of) loan losses	8,046	417
Charge-offs	(7,209)	(6,054)
Recoveries	1,768	947
Net recoveries (charge-offs)	(5,441)	(5,107)
Ending balance	263,007	259,910
Loans Receivable \| Non-PCI Loans \| CRE
Allowance for loan losses
Beginning balance	72,804	81,191
Provision for (reversal of) loan losses	1,639	1,306
Charge-offs	(148)	(56)
Recoveries	593	97
Net recoveries (charge-offs)	445	41
Ending balance	74,888	82,538
Loans Receivable \| Non-PCI Loans \| C&I
Allowance for loan losses
Beginning balance	142,166	134,597
Provision for (reversal of) loan losses	1,946	4,654
Charge-offs	(7,057)	(5,860)
Recoveries	455	686
Net recoveries (charge-offs)	(6,602)	(5,174)
Ending balance	137,510	134,077
Loans Receivable \| Non-PCI Loans \| Residential
Allowance for loan losses
Beginning balance	37,333	39,292
Provision for (reversal of) loan losses	3,835	(5,317)
Charge-offs	0	(137)
Recoveries	578	97
Net recoveries (charge-offs)	578	(40)
Ending balance	41,746	33,935
Loans Receivable \| Non-PCI Loans \| Consumer
Allowance for loan losses
Beginning balance	8,099	9,520
Provision for (reversal of) loan losses	626	(226)
Charge-offs	(4)	(1)
Recoveries	142	67
Net recoveries (charge-offs)	138	66
Ending balance	$ 8,863	$ 9,360

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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Amount, after recoveries, of loans and leases that have been written-off.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

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Amount of expense related to estimated loss from loan and lease transactions.

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