Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($) |
Preferred Stock [Member] |
Common Stock [Member] |
Additional Paid-in Capital [Member] |
Retained Earnings [Member] |
AOCI Attributable to Parent [Member] |
Noncontrolling Interest [Member] |
Total |
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|---|---|---|---|---|---|---|---|---|---|---|
| Balance at Dec. 31, 2016 | $ 53,000 | $ 215,932,000 | $ 307,151,000 | $ (624,000) | $ 377,000 | $ 522,889,000 | ||||
| Common dividends paid | (2,641,000) | (2,641,000) | ||||||||
| Common dividends declared | (2,645,000) | (2,645,000) | ||||||||
| Preferred dividends paid | (31,000) | (31,000) | ||||||||
| Issue shares of common stock upon exercise of stock options | 717,000 | 717,000 | ||||||||
| Issue shares of REIT preferred stock | 125,000 | 125,000 | ||||||||
| Stock-based compensation expense | 622,000 | 622,000 | ||||||||
| Other comprehensive income, net of tax | 1,367,000 | 1,367,000 | ||||||||
| Net income | 46,683,000 | 46,683,000 | ||||||||
| Balance at Jun. 30, 2017 | 53,000 | 217,271,000 | 348,517,000 | 743,000 | 502,000 | 567,086,000 | ||||
| Balance at Dec. 31, 2017 | 53,000 | 217,693,000 | 389,554,000 | (198,000) | 502,000 | 607,604,000 | [1] | |||
| Common dividends paid | (5,846,000) | (5,846,000) | ||||||||
| Common dividends declared | (5,848,000) | (5,848,000) | ||||||||
| Preferred dividends paid | (31,000) | (31,000) | ||||||||
| Issue shares of common stock upon exercise of stock options | 860,000 | 860,000 | ||||||||
| Stock-based compensation expense | 482,000 | 482,000 | ||||||||
| Other comprehensive income, net of tax | (6,980,000) | (6,980,000) | ||||||||
| Net income | 66,143,000 | 66,143,000 | ||||||||
| 30,539 shares of common stock withheld in net settlement upon exercise of stock options | (1,270) | (1,270) | ||||||||
| Balance at Jun. 30, 2018 | $ 53,000 | $ 217,765,000 | $ 443,972,000 | $ (7,178,000) | $ 502,000 | $ 655,114,000 | ||||
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| X | ||||||||||
- Definition The amount of common stock dividends that have been declared during the period, but not yet paid, and are currently payable to common stock holders. No definition available.
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| X | ||||||||||
- Definition The amount of increase in noncontrolling interest in relation to the issuance of preferred stock during the period. No definition available.
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| X | ||||||||||
- Definition The amount of adjustment to stockholders' equity associated with an employee's income tax withholding obligation as part of a net-share settlement of a share-based award. No definition available.
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| X | ||||||||||
- Definition Amount of increase to additional paid-in capital (APIC) from recognition of equity-based compensation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of paid and unpaid common stock dividends declared with the form of settlement in cash. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount after tax and reclassification adjustments of other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Value of stock issued as a result of the exercise of stock options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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