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Benefit Plans - Restricted Stock (Details)	12 Months Ended
	Dec. 31, 2015 $ / shares shares
Restricted Stock Units
Restricted Stock Awards (in shares)
Nonvested at beginning of period | shares	0
Granted | shares	31,089
Vested | shares	0
Forfeited | shares	(2,787)
Nonvested at end of period | shares	28,302
Weighted-Average Grant Date Fair Value Per Share (in dollars per share)
Weighted-Average Grant Date Fair Value Per Share Nonvested at January 1, 2013 | $ / shares	$ 0.00
Weighted-Average Grant Date Fair Value Per Share Granted | $ / shares	18.90
Weighted-Average Grant Date Fair Value Per Share Vested | $ / shares	0.00
Weighted-Average Grant Date Fair Value Per Share Forfeited | $ / shares	18.89
Weighted-Average Grant Date Fair Value Per Share Nonvested at December 31, 2013 | $ / shares	$ 18.90
Restricted Stock Awards
Restricted Stock Awards (in shares)
Nonvested at beginning of period | shares	20,777
Granted | shares	46,988
Vested | shares	(37,070)
Forfeited | shares	(3,166)
Nonvested at end of period | shares	27,529
Weighted-Average Grant Date Fair Value Per Share (in dollars per share)
Weighted-Average Grant Date Fair Value Per Share Nonvested at January 1, 2013 | $ / shares	$ 25.09
Weighted-Average Grant Date Fair Value Per Share Granted | $ / shares	16.69
Weighted-Average Grant Date Fair Value Per Share Vested | $ / shares	20.18
Weighted-Average Grant Date Fair Value Per Share Forfeited | $ / shares	18.02
Weighted-Average Grant Date Fair Value Per Share Nonvested at December 31, 2013 | $ / shares	$ 18.17
Deferred Stock Units
Restricted Stock Awards (in shares)
Nonvested at beginning of period | shares	0
Granted | shares	10
Vested | shares	(10)
Forfeited | shares	0
Nonvested at end of period | shares	0
Weighted-Average Grant Date Fair Value Per Share (in dollars per share)
Weighted-Average Grant Date Fair Value Per Share Nonvested at January 1, 2013 | $ / shares	$ 0.00
Weighted-Average Grant Date Fair Value Per Share Granted | $ / shares	19.72
Weighted-Average Grant Date Fair Value Per Share Vested | $ / shares	19.72
Weighted-Average Grant Date Fair Value Per Share Forfeited | $ / shares	0.00
Weighted-Average Grant Date Fair Value Per Share Nonvested at December 31, 2013 | $ / shares	$ 0.00

X

- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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X

- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(3)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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X

- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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X

- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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X

- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

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X

- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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X

- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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