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Recent Accounting Standards (Narrative) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017 USD ($)
Recent Account Standards [Abstract]
Excess tax benefit on stock-based compensation	$ 242

X

- Definition

Amount of increase (decrease) in additional paid in capital (APIC) resulting from a tax benefit (deficiency) associated with an share-based compensation plan other than an employee stock ownership plan (ESOP).

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration