Employee Benefit Plans Employer 401(k) Contributions (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Employer matching	$ 221	$ 200	$ 195
Profit sharing	301	274	236
Safe harbor	294	264	262
Total	$ 816	$ 738	$ 693