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Loans and Leases - Schedule of Credit Quality Indicator, Loan Class and Year of Origination the Amortized Cost Basis of Loans And Leases (Details) $ in Thousands	Jun. 30, 2020 USD ($)
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	$ 42,306,189
Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	39,000,279
Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	3,305,910
2020
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	4,892,525
2020 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	4,311,632
2020 | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	580,893
2019
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	7,980,896
2019 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	7,068,496
2019 | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	912,400
2018
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	7,022,866
2018 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	6,813,755
2018 | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	209,111
2017
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	5,552,479
2017 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	5,300,856
2017 | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	251,623
2016
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	4,552,082
2016 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	4,410,288
2016 | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	141,794
Prior to 2016
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	11,232,954
Prior to 2016 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	11,071,831
Prior to 2016 | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	161,123
Revolving Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	1,072,387
Revolving Loans | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	23,421
Revolving Loans | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	1,048,966
Pass | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	38,395,050
Pass | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	3,240,125
Pass | 2020 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	4,311,632
Pass | 2020 | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	579,851
Pass | 2019 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	7,066,229
Pass | 2019 | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	904,008
Pass | 2018 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	6,737,878
Pass | 2018 | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	205,400
Pass | 2017 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	5,204,929
Pass | 2017 | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	236,169
Pass | 2016 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	4,234,835
Pass | 2016 | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	137,604
Pass | Prior to 2016 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	10,816,916
Pass | Prior to 2016 | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	157,650
Pass | Revolving Loans | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	22,631
Pass | Revolving Loans | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	1,019,443
Special Mention | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	450,852
Special Mention | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	3,892
Special Mention | 2019 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	2,267
Special Mention | 2019 | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	42
Special Mention | 2018 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	68,295
Special Mention | 2017 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	77,061
Special Mention | 2016 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	126,081
Special Mention | Prior to 2016 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	176,358
Special Mention | Revolving Loans | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	790
Special Mention | Revolving Loans | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	3,850
Substandard | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	154,377
Substandard | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	61,893
Substandard | 2020 | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	1,042
Substandard | 2019 | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	8,350
Substandard | 2018 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	7,582
Substandard | 2018 | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	3,711
Substandard | 2017 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	18,866
Substandard | 2017 | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	15,454
Substandard | 2016 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	49,372
Substandard | 2016 | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	4,190
Substandard | Prior to 2016 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	78,557
Substandard | Prior to 2016 | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	3,473
Substandard | Revolving Loans | Other loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	$ 25,673

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