Accounting Policies New Prouncements Adopted (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Intangible assets	$ 10,706	$ 13,389
Short-term debt	$ 12,803	8,990
Adjustments for New Accounting Pronouncement [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Intangible assets		347
Short-term debt		8
Long-term debt		$ 339