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Deposits (Scheduled Maturities) (Details) - USD ($) | Dec. 31, 2016 | Dec. 31, 2015
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Scheduled maturities of time deposits |  |
2017 | $ 2,021,655,000 |
2018 | 156,078,000 |
2019 | 52,777,000 |
2020 | 17,064,000 |
2021 | 638,000 |
Thereafter | 98,000 |
Total time, certificates of deposit | 2,248,310,000 | $ 2,366,413,000
Time Deposits 250,000 or exceed | 1,005,000 | $ 1,021,000
Scheduled maturities of time deposits in amounts of $100,000 or more |  |
Due within 3 months or less | 605,093,000 |
Due after 3 months and within 6 months | 390,668,000 |
Due after 6 months and within 12 months | 430,447,000 |
Due after 12 months | 160,057,000 |
Total | $ 1,586,265,000 |

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- Definition Amount of time deposit liabilities, including certificates of deposit, in denominations of $100,000 or more, maturing after twelve months from the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Industry Guide -Number 3 -Section V -Paragraph D-E + Details
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- Definition Amount of time deposit liabilities, including certificates of deposit, in denominations of $100,000 or more, maturing within three months or fewer from the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Industry Guide -Number 3 -Section V -Paragraph D-E + Details
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- Definition Amount of time deposits maturing after the fifth fiscal year following the latest fiscal year. Time deposits include, but are not limited to, certificates of deposits. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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