Stockholders' Equity Issuance of Common Stock in Connection with Acquisition of CYS Investments, Inc. (Details) - USD ($) $ in Thousands |
1 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Jul. 31, 2018 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Class of Stock [Line Items] | ||||
| Number of shares of stock issued during period (in shares) | 30,301 | |||
| Aggregate cash consideration exchanged for shares of CYS common stock | $ 14,967 | |||
| Common Stock [Member] | ||||
| Class of Stock [Line Items] | ||||
| Number of shares of stock issued during period (in shares) | 72,587,772 | 72,616,483 | 26,950 | |
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- Definition Aggregate cash consideration exchanged for shares of CYS common stock. No definition available.
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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. No definition available.
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- Definition Number of new stock issued during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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