Business Combination, Contingent Consideration, Liability for Payments to Option Holder, Current

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- Definition

Fair Value, Discount Amount, Available for sales securities

+ References

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- Definition

Cash and Cash Equivalents, Restricted, Fair Value Disclosure

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- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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- Definition

Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer.

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- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 35
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

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- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes 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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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Fair Value Measurements (Balance Measured at Fair Value) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability for Payments to Option Holder, Current	$ 900	$ 800
Available-for-sale Securities, Current	500	500
Assets
Restricted cash	24,951	23,785	$ 25,794	$ 24,175
Investment available for sale	15,900	15,300
Liabilities
Fair Value, Discount Amount, Available for sales securities	2,800	2,800
Fair Value, Measurements, Recurring [Member]
Assets
Cash and cash equivalents	247,681	249,417
Restricted cash	24,951	23,785
Investment available for sale	16,452	15,772
Liabilities
Business Combination, Contingent Consideration, Liability	2,280	2,407
Fair Value, Measurements, Recurring [Member] \| Level 1
Assets
Cash and cash equivalents	247,681	249,417
Investment available for sale	0	0
Liabilities
Business Combination, Contingent Consideration, Liability	0	0
Fair Value, Measurements, Recurring [Member] \| Level 2
Assets
Cash and cash equivalents	0	0
Restricted cash	0	0
Investment available for sale	0	0
Liabilities
Business Combination, Contingent Consideration, Liability	0	0
Fair Value, Measurements, Recurring [Member] \| Level 3
Assets
Cash and cash equivalents	0	0
Restricted cash	0	0
Investment available for sale	16,452	15,772
Liabilities
Business Combination, Contingent Consideration, Liability	$ 2,280	$ 2,407