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Borrowings | 12 Months Ended
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Dec. 31, 2017
Debt Disclosure [Abstract] |
Borrowings | Borrowings The Company’s repurchase agreements totaled $362,573,000 and $473,650,000 at December 31, 2017 and 2016, respectively, and are secured by investment securities with carrying values of $475,601,000 and $472,239,000, respectively. Securities are pledged to customers at the time of the transaction in an amount at least equal to the outstanding balance and are held in custody accounts by third parties. The fair value of collateral is continually monitored and additional collateral is provided as deemed appropriate. The following tables summarize the carrying value of the Company’s repurchase agreements by remaining contractual maturity and category of collateral:
| December 31, 2017
| Remaining Contractual Maturity of the Agreements
(Dollars in thousands) | Overnight and Continuous |  | Up to 30 Days |  | Total
Residential mortgage-backed securities | $ | 360,751 |  |  | — |  |  | 360,751 |
Commercial mortgage-backed securities | 1,822 |  |  | — |  |  | 1,822 |
Total | $ | 362,573 |  |  | — |  |  | 362,573 |
| December 31, 2016
| Remaining Contractual Maturity of the Agreements
(Dollars in thousands) | Overnight and Continuous |  | Up to 30 Days |  | Total
Residential mortgage-backed securities | $ | 471,706 |  |  | 643 |  |  | 472,349 |
Commercial mortgage-backed securities | 1,301 |  |  | — |  |  | 1,301 |
Total | $ | 473,007 |  |  | 643 |  |  | 473,650 |
Note 8. Borrowings (continued) The Company’s FHLB advances bear a fixed rate of interest and are subject to restrictions or penalties in the event of prepayment. The advances are collateralized by specifically pledged loans and investment securities, FHLB stock owned by the Company, and a blanket assignment of the unpledged qualifying loans and investments. During the year ended December 31, 2017, the Company modified the majority of its long-term FHLB advances, including prepaying higher cost advances, to strategically manage its asset size. The scheduled maturities of FHLB advances consist of the following:
| December 31, 2017 |  | December 31, 2016
(Dollars in thousands) | Amount |  | Weighted Rate |  | Amount |  | Weighted Rate
Maturing within one year | $ | 200,869 |  |  | 1.64 | % |  | $ | 41,099 |  |  | 0.84 | %
Maturing one year through two years | 887 |  |  | 2.05 | % |  | 70,983 |  |  | 1.42 | %
Maturing two years through three years | 1,651 |  |  | 3.58 | % |  | 927 |  |  | 2.16 | %
Maturing three years through four years | 148,721 |  |  | 2.69 | % |  | 1,728 |  |  | 3.66 | %
Maturing four years through five years | 945 |  |  | 5.25 | % |  | 135,000 |  |  | 3.08 | %
Thereafter | 922 |  |  | 5.42 | % |  | 2,012 |  |  | 5.33 | %
Total | $ | 353,995 |  |  | 2.11 | % |  | $ | 251,749 |  |  | 2.27 | %
The Company’s other borrowings consisted of capital lease obligations and other debt obligations through consolidation of certain VIEs. At December 31, 2017, the Company had $230,000,000 in unsecured lines of credit which are typically renewed on an annual basis with various correspondent entities.

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI http://asc.fasb.org/topic&trid=2208564 + Details
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