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Loans Receivable, Net - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Loans pledged as collateral | $ 7,948,796 |  |
Percentage of consolidated stockholders equity exceeding which no borrower had outstanding loans or commitments | 10.00% |  |
Notes receivable, related parties | $ 112,127 | $ 77,634 |
Origination of notes receivable from related parties | 56,937 |  |
Repayment of notes receivable from related parties | 22,444 |  |
Provision for credit losses | 16,380 | 37,637 | $ 57
Nonaccrual interest income reversed | 660 | 832 |
TDR with pre modification loan balance for which oreo was received | 1,628 | 2,278 | 2,992
Consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process | 102 | 548 |
OREO Secured by Residential Real Estate | 0 | 273 |
Additional unfunded commitments on TDRs | 1,054 | 817 |
Charge-offs on TDRs | 0 | 453 | $ 709
State Bank of Arizona |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Provision for credit losses |  | 4,794 |
PCD loans acquired |  | 3,401 |
ACL on PCD loans acquired |  | 49 |
Discount (premium) on PCD loans |  | $ 13 |
Altabank |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Provision for credit losses | 18,056 |  |
PCD loans acquired | 58,576 |  |
ACL on PCD loans acquired | 371 |  |
Discount (premium) on PCD loans | $ (840) |  |

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- Definition Carrying amount as of the balance sheet date of loans that have been pledged as collateral for borrowings. If the secured party has the right by contract or custom to sell or re-pledge the collateral, then the debtor reclassifies that asset and report that asset in its statement of financial position separately from other assets not so encumbered. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66007379&loc=d3e113888-111728 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5086-111524 + Details
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