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Statements of Cash Flow | 12 Months Ended
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Dec. 31, 2017
Supplemental Cash Flow Information [Abstract] |
Statements of Cash Flow | Statements of Cash Flows Supplemental cash flow information for the years ended December 31, 2017, 2016, and 2015 is as follows:
($ in thousands) |  | 2017 |  | 2016 |  | 2015
Cash paid during the period for: |  |  |  |  |  |  |  |  |
Interest |  | $ | 23,905 |  |  | 22,098 |  |  | 21,892 |
Federal income tax |  | 62,000 |  |  | 46,405 |  |  | 39,500 |
Non-cash items: |  |  |  |  |  |
Exchange of fixed income securities, AFS |  | 22,511 |  |  | 23,579 |  |  | 36,792 |
Exchange of fixed income securities, HTM |  | — |  |  | — |  |  | 15,257 |
Corporate actions related to equity securities, AFS1 |  | 4,725 |  |  | 3,263 |  |  | 4,239 |
Assets acquired under capital lease arrangements |  | 278 |  |  | 3,151 |  |  | 6,760 |
Non-cash purchase of property and equipment |  | — |  |  | 78 |  |  | — |
1Examples of such corporate actions include non-cash acquisitions and stock-splits. Included in "Other assets" on the Consolidated Balance Sheet was $44.2 million at December 31, 2017 and $36.9 million at December 31, 2016 of cash received from the NFIP, which is restricted to pay flood claims under the Write Your Own Program.

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- Definition The entire disclosure for supplemental cash flow activities, including cash, noncash, and part noncash transactions, for the period. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -URI http://asc.fasb.org/topic&trid=2134446 + Details
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- References No definition available. + Details
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