Fair Value Measurements - Restricted Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash and cash equivalents, current	$ 332,547	$ 305,368
Restricted cash and cash equivalents, noncurrent	22,357	22,356
Restricted cash and cash equivalents	354,904	327,724
Vaginal mesh cases
Restricted Cash and Cash Equivalents Items [Line Items]
Settlement funds	$ 327,388	$ 299,733

Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Name:	us-gaap_RestrictedCashAndCashEquivalents
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant