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Business (Details) - Adjustments For New Accounting Principle Early Adoption [Member] - Accounting Standards Update 2016-09 [Member] $ in Thousands	Dec. 31, 2016 USD ($)
New Accounting Pronouncement Early Adoption [Line Items]
New Accounting Pronouncement Or Change In Accounting Principle Cumulative Effect Of Change On Equity Or Net Assets 1	$ 58
Adjustment To Retained Earnings Recognized Deferred Tax Asset Related Stock Compensation Expense	$ 362

Amount of cumulative effect of the change in accounting principle or new accounting pronouncement on retained earnings or other components of equity or net assets in the statement of financial position as of the beginning of the earliest period presented.

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