Stockholders' Equity Additional Details (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Stockholders' Equity Attributable to Parent [Abstract]
Preferred Stock, Shares Authorized	2,000,000	2,000,000
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Stock Issued During Period, Shares, New Issues	960,488
Stock Issued During Period, Value, Other	$ 62.26
Proceeds from issuance of common stock, net of expenses	$ 57,360,000	$ 0	$ 0