Significant Accounting Policies New Accounting Pronouncements (Details) - USD ($) $ in Thousands		Jan. 01, 2016	Dec. 31, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption	[1]	$ 0
Debt Issuance Costs, Noncurrent, Net			$ 800
Retained Earnings [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption	[1]	$ 372

[1] (1) Cumulative effect adjustment reflects adoption of ASU 2016-09 as of January 1, 2016.