v2.4.1.9

Stock-Based Compensation Stock-Based Compensation - Compensation Expense (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 703us-gaap_ShareBasedCompensation	$ 364us-gaap_ShareBasedCompensation	$ 746us-gaap_ShareBasedCompensation
Tax benefit on exercise of stock options	123us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	175us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	12us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	488us-gaap_ShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember	364us-gaap_ShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember	746us-gaap_ShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember
Stock appreciation rights (“SARs”)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 215us-gaap_ShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_StockAppreciationRightsSARSMember	$ 0us-gaap_ShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_StockAppreciationRightsSARSMember	$ 0us-gaap_ShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_StockAppreciationRightsSARSMember

X

- Definition

Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 20

-Section 55

-Paragraph 24

-URI http://asc.fasb.org/extlink&oid=32706628&loc=d3e11374-113907

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

X

- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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- Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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X

- Details

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Namespace Prefix:
Data Type:	na
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X

- Details

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Data Type:	na
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