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Consolidated Statements Of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands | Total | Preferred Stock [Member] | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Loss [Member] | Treasury Stock at Cost [Member] | Parent [Member] | Non-controlling Interests [Member]
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance, beginning of period at Dec. 31, 2017 |  |  |  | $ 150,000 | $ 10,746 | $ 1,733,348 | $ 1,033,526 | $ (26,736) | $ (39,308) |  |
Common stock issued under employee plans |  |  |  |  | 123 |  |  |  | 22,846 |  |
Common stock repurchased |  | $ (62,500) |  |  |  |  |  |  | (62,514) |  |
Common stock issued for acquisitions |  |  |  |  | 297 | 110,374 |  |  |  |  |
Unit amortization, net of forfeitures |  |  |  |  |  | 77,350 |  |  |  |  |
Net income |  | 279,906 |  |  |  |  | 279,906 |  |  |  |
Dividends declared, Common |  |  |  |  |  |  | (31,097) |  |  |  |
Dividends declared, Preferred |  |  |  |  |  |  | (7,031) |  |  |  |
Common stock issued under employee plans and related tax benefits |  |  |  |  |  | (52,922) | (9,774) |  |  |  |
Other |  |  |  |  |  | 8 | 1,130 |  |  |  |
Dividends declared to equity-award holders |  |  |  |  |  | 5,074 |  |  |  |  |
Unrealized gains/(losses) on securities, net of tax |  | (28,065) | [1],[2],[3],[4] |  |  |  |  | (28,065) |  |  |
Unrealized gains/(losses) on cash flow hedging activities, net of tax |  |  |  |  |  |  |  | 1,895 |  |  |
Foreign currency translation adjustment, net of tax |  | (3,434) | [2],[4] |  |  |  |  | (3,433) |  |  |
Cumulative adjustments for accounting changes | [5] |  |  |  |  |  | (1,124) | (3,050) |  |  |
Balance, end of period at Sep. 30, 2018 |  | 3,161,569 |  | 150,000 | 11,166 | 1,873,232 | 1,265,536 | (59,389) | (78,976) | $ 3,161,569 |
Balance, beginning of period at Jun. 30, 2018 |  |  |  | 150,000 | 10,869 | 1,736,853 | 1,175,151 | (53,393) | (65,118) |  |
Common stock issued under employee plans |  |  |  |  |  |  |  |  | 2,773 |  |
Common stock repurchased |  | (16,600) |  |  |  |  |  |  | (16,631) |  |
Common stock issued for acquisitions |  |  |  |  | 297 | 110,374 |  |  |  |  |
Unit amortization, net of forfeitures |  |  |  |  |  | 27,752 |  |  |  |  |
Net income |  | 103,858 |  |  |  |  | 103,858 |  |  |  |
Dividends declared, Common |  |  |  |  |  |  | (10,524) |  |  |  |
Dividends declared, Preferred |  |  |  |  |  |  | (2,343) |  |  |  |
Common stock issued under employee plans and related tax benefits |  |  |  |  |  | (3,516) | (664) |  |  |  |
Other |  |  |  |  |  | 45 | 58 |  |  |  |
Dividends declared to equity-award holders |  |  |  |  |  | 1,724 |  |  |  |  |
Unrealized gains/(losses) on securities, net of tax |  | (3,138) | [1],[2],[3],[4] |  |  |  |  | (3,138) |  |  |
Unrealized gains/(losses) on cash flow hedging activities, net of tax |  |  |  |  |  |  |  | (1,523) |  |  |
Foreign currency translation adjustment, net of tax |  | (1,336) | [2],[4] |  |  |  |  | (1,335) |  |  |
Balance, end of period at Sep. 30, 2018 |  | 3,161,569 |  | 150,000 | 11,166 | 1,873,232 | 1,265,536 | (59,389) | (78,976) | 3,161,569 |
Balance, beginning of period at Dec. 31, 2018 |  | 3,197,593 |  | 150,000 | 11,166 | 1,893,304 | 1,366,503 | (72,523) | (180,857) |  | $ 30,000
Common stock issued under employee plans |  |  |  |  |  |  |  |  | 71,793 |  |
Common stock repurchased |  | (180,400) |  |  |  |  |  |  | (180,434) |  |
Unit amortization, net of forfeitures |  |  |  |  |  | 86,388 |  |  |  |  |
Net income |  | 317,706 |  |  |  |  | 319,318 |  |  |  | 1,612
Dividends declared, Common |  |  |  |  |  |  | (38,249) |  |  |  |
Dividends declared, Preferred |  |  |  |  |  |  | (12,476) |  |  |  |
Common stock issued under employee plans and related tax benefits |  |  |  |  |  | (84,902) | (18,770) |  |  |  |
Issuance of preferred stock |  |  |  | 160,000 |  | (5,012) |  |  |  |  |
Other |  |  |  |  |  | 37 | (1,296) |  |  |  |
Unrealized gains/(losses) on securities, net of tax |  | 58,428 | [1],[2],[3],[4] |  |  |  |  | 58,428 |  |  |
Unrealized gains/(losses) on cash flow hedging activities, net of tax |  |  |  |  |  |  |  | (4,260) |  |  |
Foreign currency translation adjustment, net of tax |  | (5,239) | [2],[4] |  |  |  |  | (5,239) |  |  |
Cumulative adjustments for accounting changes | [5] |  |  |  |  |  | (11,204) |  |  |  |
Capital contributions from non-controlling interest holders |  |  |  |  |  |  |  |  |  |  | 26,800
Distributions to non-controlling interest holders |  |  |  |  |  |  |  |  |  |  | (2,379)
Balance, end of period at Sep. 30, 2019 |  | 3,557,748 |  | 310,000 | 11,166 | 1,889,815 | 1,603,826 | (23,594) | (289,498) | 3,501,715 | 56,033
Balance, beginning of period at Jun. 30, 2019 |  |  |  | 310,000 | 11,166 | 1,867,209 | 1,512,702 | (35,355) | (236,596) |  | 56,296
Common stock issued under employee plans |  |  |  |  |  |  |  |  | 2,566 |  |
Common stock repurchased |  | (55,500) |  |  |  |  |  |  | (55,468) |  |
Unit amortization, net of forfeitures |  |  |  |  |  | 26,300 |  |  |  |  |
Net income |  | 109,414 |  |  |  |  | 110,122 |  |  |  | 708
Dividends declared, Common |  |  |  |  |  |  | (12,572) |  |  |  |
Dividends declared, Preferred |  |  |  |  |  |  | (4,844) |  |  |  |
Common stock issued under employee plans and related tax benefits |  |  |  |  |  | (3,708) | (478) |  |  |  |
Other |  |  |  |  |  | 14 | (709) |  |  |  |
Unrealized gains/(losses) on securities, net of tax |  | 16,344 | [1],[2],[3],[4] |  |  |  |  | 16,344 |  |  |
Unrealized gains/(losses) on cash flow hedging activities, net of tax |  |  |  |  |  |  |  | (477) |  |  |
Foreign currency translation adjustment, net of tax |  | (4,106) | [2],[4] |  |  |  |  | (4,106) |  |  |
Cumulative adjustments for accounting changes | [6] |  |  |  |  |  | (395) |  |  |  |
Distributions to non-controlling interest holders |  |  |  |  |  |  |  |  |  |  | (971)
Balance, end of period at Sep. 30, 2019 |  | $ 3,557,748 |  | $ 310,000 | $ 11,166 | $ 1,889,815 | $ 1,603,826 | $ (23,594) | $ (289,498) | $ 3,501,715 | $ 56,033
[1] | As part of the adoption of ASU 2019-04, in the third quarter of 2019, the Company made a one-time election to transfer a portion of its held-to-maturity securities to available-for-sale. The transfer resulted in a net of tax increase to accumulated other comprehensive income of $17.9 million. See Notes 2 and 6 for additional information on the transfer.
[2] | Net of tax expense of $4.4 million and tax benefit of $2.1 million for the three months ended September 30, 2019 and 2018, respectively. Net of tax expense of $18.1 million and tax benefit of $10.4 million for the nine months ended September 30, 2019 and 2018, respectively.
[3] | Reclassifications to earnings during the three months ended September 30, 2019 were immaterial. Net of reclassifications to earnings of realized losses of $0.2 million for the nine months ended September 30, 2019. There were no reclassifications to earnings during the three and nine months ended September 30, 2018.
[4] | The adoption of ASU 2018-02 on January 1, 2018 resulted in a reclassification of $3.0 million to retained earnings related to cash flow hedges and investment portfolio risk.
[5] | Cumulative adjustments for accounting changes relate to the adoption of certain accounting updates during 2019 and 2018. See Note 2 to the consolidated financial statements for further information. The 2018 adjustments are described further in Note 2 to the consolidated financial statements in our 2018 Form 10-K.
[6] | Cumulative adjustments for accounting changes relate to the adoption of certain accounting updates during 2019. See Note 2 to the consolidated financial statements for further information.

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- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition Amount of unrealized gain (loss) related to derivatives designated as cash flow hedging instruments, recorded in results of operations to the extent that the cash flow hedge is determined to be ineffective. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
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