Recent Issued Accounting Standards Recently Issued Accounting Standards (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Jan. 01, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of ASU 2016-09 adoption	$ 39
Share-based compensation, excess tax benefit, amount	3,000
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of ASU 2016-09 adoption	$ (72)
Retained Earnings | Accounting Standards Update 2016-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of ASU 2016-09 adoption		$ 100