Organization and Summary of Significant Accounting Policies Redeemable Noncontrolling Interest (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Redeemable Noncontrolling Interest [Roll Forward]
Redeemable noncontrolling interest, beginning of period	$ 2,665	$ 3,113	$ 0
Acquisition date value of noncontrolling interest	0	0	3,131
Net income (loss) attributable to redeemable noncontrolling interest	(352)	(51)	338
Other comprehensive loss attributable to noncontrolling interest	(26)	(397)	(356)
Redeemable noncontrolling interest, end of period	$ 2,287	$ 2,665	$ 3,113