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Parent Company Only Financial Information - Condensed Statements of Cash Flow (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |  |
Net income |  | $ 511,109 | $ 395,043 | $ 422,417
Change in other assets | [1] | (411,074) | (55,825) | 29,952
Change in other liabilities | [2] | 8,619 | 10,571 | (53,320)
Net cash provided by operating activities |  | 334,196 | 509,750 | 540,355
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |  |
Net cash used in investing activities |  | (1,025,359) | (2,058,907) | (4,020,466)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |  |
Treasury stock repurchased |  | (50,190) | (67,125) | (160,767)
Net cash provided by financing activities |  | 1,897,224 | 816,072 | 2,426,897
Net increase (decrease) in cash, cash equivalents, and restricted cash |  | 1,206,061 | (733,085) | (1,053,214)
Cash, cash equivalents, and restricted cash at beginning of year |  | 741,870 | 1,474,955 | 2,528,169
Cash and cash equivalents at end of year |  | 1,947,931 | 741,870 | 1,474,955
Parent Company |  |  |  |
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |  |
Net income |  | 511,109 | 395,043 | 422,417
Change in other assets |  | (4) | 386 | 256
Change in other liabilities |  | (306) | (2,608) | (1,152)
Other, net |  | 30,352 | 32,776 | 36,677
Equity in underdistributed earnings of subsidiaries |  | (167,801) | (49,916) | (83,880)
Net cash provided by operating activities |  | 373,350 | 375,681 | 374,318
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |  |
Change in receivable from subsidiaries, net |  | 2,249 | 4,206 | (1,705)
Net cash used in investing activities |  | 2,249 | 4,206 | (1,705)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |  |
Treasury stock repurchased |  | (59,022) | (75,220) | (163,249)
Cash dividends paid on common and preferred stock |  | (348,435) | (350,222) | (365,889)
Proceeds from issuance of subordinated notes |  |  |  | 294,607
Net cash provided by financing activities |  | (407,457) | (425,442) | (234,531)
Net increase (decrease) in cash, cash equivalents, and restricted cash |  | (31,858) | (45,555) | 138,082
Cash, cash equivalents, and restricted cash at beginning of year |  | 183,063 | 228,618 | 90,536
Cash and cash equivalents at end of year |  | $ 151,205 | $ 183,063 | $ 228,618
[1] | Includes $20.0 million and $38.4 million of net amortization of operating lease right-of-use assets for the twelve months ended December 31, 2020 and December 31, 2019, respectively.
[2] | Includes $20.0 million and $38.4 million of net amortization of operating lease liability for the twelve months ended December 31, 2020 and December 31, 2019, respectively.

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