Description of Business - Additional Information (Details) - USD ($) $ in Thousands |
Mar. 31, 2019 |
Dec. 31, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
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| Description Of Business [Abstract] | |||||||
| Cash | $ 48,436 | $ 45,780 | [1] | $ 41,968 | $ 43,471 | ||
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- Definition Amount 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. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Description of business. No definition available.
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