XML 116 R100.htm IDEA: XBRL DOCUMENT
v3.19.1

Contingencies - Performance Bonds (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Commitments and Contingencies Disclosure [Abstract] |  |
Malpractice loss contingency, letters of credit and surety bonds | $ 16,097 | $ 16,003

X
- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of letters of credit and other surety bonds that are available for the future payment of malpractice claims. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 954 -SubTopic 450 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6491354&loc=d3e6049-115624 + Details
Name: | us-gaap_MalpracticeLossContingencyLettersOfCreditAndSuretyBonds
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant