Percentage of Heartland's Mortgage-backed Securities, Issued by US Government Sponsored Enterprises

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Line items represent reporting concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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-Name Regulation S-X (SX)
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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Cost of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value.

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Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of investment in equity security without readily determinable fair value.

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- Definition

Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

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-SubTopic 325
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The sum of the fair values, as of the date of each statement of financial position presented, of securities that are restricted as collateral for the payment of related debt obligations, primarily secured borrowings and repurchase agreements, and that are reclassified and separately reported in the statement of financial position because the transferee has the right by contract or custom to sell or re-pledge them.

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Securities (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
Securities (Narrative) (Details) - USD ($)	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Jan. 01, 2018	Dec. 31, 2017
Investment [Line Items]
Reclassification of unrealized gain in fair value on equity securities						$ 0
Equity securities with a readily determinable fair value	$ 16,916,000		$ 16,916,000
Equity securities, at fair value	16,916,000		16,916,000
Unrealized net gains on equity securities recognized in current earnings	54,000	$ 0	97,000	$ 0
Fair value of securities pledged	551,300,000		551,300,000			670,300,000
Gross realized gains on available-for-sale securities			0	$ 0
Equity securities without readily determinable fair value	22,400,000		22,400,000			18,600,000
Shares of stock in FHLB	$ 15,100,000		$ 15,100,000			14,000,000
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Investment [Line Items]
Percentage of mortgage and asset-backed securities issued by government-sponsored enterprises	70.00%		70.00%
Retained Earnings
Investment [Line Items]
Reclassification of unrealized gain in fair value on equity securities						$ 280,000
Retained Earnings \| ASU 2016-01
Investment [Line Items]
Reclassification of unrealized gain in fair value on equity securities					$ 280,000