Summary of Significant Accounting Policies (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) customer	Dec. 31, 2015 USD ($) customer	Dec. 31, 2014 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Restricted cash and cash equivalents	$ 282,074	$ 585,379
Advertising costs	$ 47,900	$ 57,900	$ 28,100
Trade Accounts Receivable
Summary Of Significant Accounting Policies [Line Items]
Percentage of trade accounts receivable from major customers	84.00%	77.00%
Number of customers | customer	3	3
Vaginal mesh cases
Summary Of Significant Accounting Policies [Line Items]
Settlement funds	$ 275,987	$ 578,970