Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
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Balance Type:	credit
Period Type:	instant

- Definition

The average effective interest rate during the reporting period.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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-Name Accounting Standards Codification
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- Definition

Line items represent financial 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.

+ References

No definition available.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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- Definition

The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

+ References

No definition available.

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- Definition

The net cash inflow or outflow in aggregate debt due to repayments and proceeds from additional borrowings.

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- Definition

Number of stock bought back by the entity at the exercise price or redemption price.

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Other borrowings (Details) - USD ($) $ in Millions			3 Months Ended	12 Months Ended
Other borrowings (Details) - USD ($) $ in Millions	Jul. 30, 2015	Jun. 20, 2012	Sep. 30, 2015	Dec. 31, 2015	Feb. 05, 2015	Feb. 01, 2015	Jun. 15, 2012
Debt Instrument [Line Items]
Interest rate on note						2.95%
Loan Agreement [Member]
Debt Instrument [Line Items]
Face amount							$ 25.0
Repayment of debt			$ 12.4
Loan Agreement [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				3.00%
Loan Agreement [Member] \| LIBOR Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				3.00%
Loan Agreement [Member] \| Three-Months LIBOR [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				2.25%
Loan Agreement [Member] \| Three-Months LIBOR [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				3.00%
Loan Agreement [Member] \| Preferred Stock [Member]
Debt Instrument [Line Items]
Number of shares of preferred stock redeemed with borrowings (in shares)		71,250
The Notes [Member]
Debt Instrument [Line Items]
Face amount	$ 60.0
Maturity date				Jul. 30, 2025
Percentage of redemption price	100.00%
Interest rate on note				4.875%
Net proceed from issuance note				$ 59.1
The Notes [Member] \| Three-Months LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				3.128%
Pinnacle Bank [Member]
Debt Instrument [Line Items]
Face amount					$ 40.0
Repayment of debt			$ 39.0
Pinnacle Bank [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Loan agreement bore interest rate				0.00%
Pinnacle Bank [Member] \| One Month LIBOR [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				1.65%
Pinnacle Bank [Member] \| One Month LIBOR [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				1.95%