Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Prior Period Adjustments) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net cash provided by operating activities	$ 743	$ 30,732	$ 15,357
Net cash provided by (used in) financing activities	72,160	(424)	96,098
Previously reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net cash provided by operating activities		27,681	21,154
Net cash provided by (used in) financing activities	$ 2,627		90,301
Previously reported [Member] | Financing Activities [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Book overdrafts		(3,051)	5,797
Reclass to Conform with Current Presentation [Member] | Operating Activities [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Book overdrafts		$ 3,051	$ (5,797)