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ACQUISITIONS, Estimated Fair Value of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands |  |  | 6 Months Ended |
--- | --- | --- | --- | ---
Jan. 02, 2019 | Apr. 02, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018
Consideration paid [Abstract] |  |  |  |  |  |
Cash |  |  |  | $ 1,200 | $ 1,737 |
Recognized amounts of identifiable assets acquired and liabilities assumed [Abstract] |  |  |  |  |  |
Goodwill |  |  |  | $ 733,503 | $ 733,479 | $ 733,503
Wealth Resources Network, Inc [Member] |  |  |  |  |  |
Consideration paid [Abstract] |  |  |  |  |  |
Cash |  | $ 1,200 |  |  |  |
Total net consideration paid |  | 1,200 |  |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |  |
Premises and equipment |  | 0 |  |  |  |
Other assets |  | 0 |  |  |  |
Other liabilities |  | 0 |  |  |  |
Total identifiable assets, net |  | 1,200 |  |  |  |
Goodwill |  | 0 |  |  |  |
Wealth Resources Network, Inc [Member] | Other Intangibles [Member] |  |  |  |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed [Abstract] |  |  |  |  |  |
Intangibles |  | $ 1,200 |  |  |  |
Other [Member] |  |  |  |  |  |
Consideration paid [Abstract] |  |  |  |  |  |
Cash | [1] |  | $ 1,753 |  |  |
Total net consideration paid | [1] |  | 1,753 |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed [Abstract] |  |  |  |  |  |
Cash and cash equivalents | [1] |  | 16 |  |  |
Premises and equipment | [1] |  | 10 |  |  |
Other assets | [1] |  | 105 |  |  |
Other liabilities | [1] |  | (31) |  |  |
Total identifiable assets, net | [1] |  | 1,443 |  |  |
Goodwill | [1] |  | 310 |  |  |
Other [Member] | Other Intangibles [Member] |  |  |  |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed [Abstract] |  |  |  |  |  |
Intangibles | [1] |  | $ 1,343 |  |  |
[1] | Includes amounts related to the Styles Bridges, Penna, and HR Consultants acquisitions.

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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477 + Details
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472 + Details
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