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Fair Value Measurement - Summary of Contractual Maturities of Available for Sale Securities (Detail) $ in Thousands | Jun. 30, 2019 USD ($)
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Schedule Of Available For Sale Securities [Line Items] |
Available for sale securities, contractual maturities less than 1 year | $ 51,207
Available for sale securities, contractual maturities between 1 to 5 years | 173,253
Available for sale securities, contractual maturities between 5 to 10 years | 52,600
Available for sale securities, contractual maturities after 10 years | 152
Available for sale securities, contractual maturities, Total | 277,212
Corporate Bonds [Member] |
Schedule Of Available For Sale Securities [Line Items] |
Available for sale securities, contractual maturities less than 1 year | 9,162
Available for sale securities, contractual maturities between 1 to 5 years | 143,773
Available for sale securities, contractual maturities between 5 to 10 years | 24,886
Available for sale securities, contractual maturities after 10 years | 152
Available for sale securities, contractual maturities, Total | 177,973
U.S. Treasuries [Member] |
Schedule Of Available For Sale Securities [Line Items] |
Available for sale securities, contractual maturities less than 1 year | 21,155
Available for sale securities, contractual maturities between 1 to 5 years | 16,612
Available for sale securities, contractual maturities, Total | 37,767
U.S. Government Agency Securities [Member] |
Schedule Of Available For Sale Securities [Line Items] |
Available for sale securities, contractual maturities less than 1 year | 4,002
Available for sale securities, contractual maturities between 1 to 5 years | 7,921
Available for sale securities, contractual maturities between 5 to 10 years | 27,714
Available for sale securities, contractual maturities, Total | 39,637
Money Market Funds [Member] |
Schedule Of Available For Sale Securities [Line Items] |
Available for sale securities, contractual maturities less than 1 year | 16,838
Available for sale securities, contractual maturities, Total | 16,838
Supranational Bonds [Member] |
Schedule Of Available For Sale Securities [Line Items] |
Available for sale securities, contractual maturities between 1 to 5 years | 4,801
Available for sale securities, contractual maturities, Total | 4,801
Asset Backed Securities [Member] |
Schedule Of Available For Sale Securities [Line Items] |
Available for sale securities, contractual maturities between 1 to 5 years | 146
Available for sale securities, contractual maturities, Total | 146
Municipal Bonds [Member] |
Schedule Of Available For Sale Securities [Line Items] |
Available for sale securities, contractual maturities less than 1 year | 50
Available for sale securities, contractual maturities, Total | $ 50

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- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27198-111563 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=75019621&loc=d3e62586-112803 + Details
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- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27198-111563 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=75019621&loc=d3e62586-112803 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 + Details
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- Definition Fair value of investment in debt security, measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27198-111563 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=75019621&loc=d3e62586-112803 + Details
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