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Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock | Additional Paid-In Capital | (Distributions in Excess of Earnings/Earnings in Excess of Distributions | Accumulated Other Comprehensive Income (Loss) | Treasury Stock | Noncontrolling Interest
--- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2016 |  | $ 974,957 | $ 1,125 | $ 891,993 | $ 112,763 | $ (30,825) | $ 0 | $ (99)
Beginning Balance (in shares) at Dec. 31, 2016 |  |  | 112,548 |  |  |  | 0 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Proceeds from stock options exercised |  | 6,962 | $ 4 | 6,958 |  |  |  |
Proceeds from stock options exercised (in shares) |  |  | 358 |  |  |  |  |
Tax benefit related to equity compensation |  | 0 |  |  |  |  |  |
Stock based compensation expense |  | 19,844 |  | 19,844 |  |  |  |
Shares withheld for net settlements of share-based awards | [1] | (4,142) | $ (1) | (4,141) |  |  |  |
Shares withheld for net settlements of share-based awards (in shares) | [1] |  | (136) |  |  |  |  |
Restricted stock granted |  | 0 | $ 9 | (9) |  |  |  |
Restricted stock granted (in shares) |  |  | 933 |  |  |  |  |
Restricted stock canceled |  | 0 | $ (1) | 1 |  |  |  |
Restricted stock canceled (in shares) |  |  | 65 |  |  |  |  |
Dividends - paid |  | (227,463) |  |  | (227,463) |  |  |
Issuance of common stock - prospectus supplement |  | 275,867 | $ 104 | 275,763 |  |  |  |
Issuance of common stock - prospectus supplement (in shares) |  |  | 10,350 |  |  |  |  |
Purchase of treasury shares |  | 0 |  |  |  |  |  |
Purchase of treasury shares (in shares) |  |  | 0 |  |  |  |  |
Issuance of common stock (ESPP) |  | 497 |  | 497 |  |  |  |
Issuance of common stock (ESPP) (in shares) |  |  | 20 |  |  |  |  |
Net Income |  | 146,024 |  |  | 146,241 |  |  | (217)
Other comprehensive income (loss) |  | 6,373 |  |  |  | 6,379 |  | (6)
Ending Balance at Dec. 31, 2017 |  | 1,198,919 | $ 1,240 | 1,190,906 | 31,541 | (24,446) |  | (322)
Ending Balance (in shares) at Dec. 31, 2017 |  |  | 124,008 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Proceeds from stock options exercised |  | 1,887 | $ 1 | 1,886 |  |  |  |
Proceeds from stock options exercised (in shares) |  |  | 103 |  |  |  |  |
Stock based compensation expense |  | 22,049 |  | 22,049 |  |  |  |
Shares withheld for net settlements of share-based awards | [1] | (3,820) | $ (2) | (3,818) |  |  |  |
Shares withheld for net settlements of share-based awards (in shares) | [1] |  | (173) |  |  |  |  |
Restricted stock granted |  | 0 | $ 9 | (9) |  |  |  |
Restricted stock granted (in shares) |  |  | 906 |  |  |  |  |
Restricted stock canceled |  | 0 |  |  |  |  |  |
Restricted stock canceled (in shares) |  |  | (73) |  |  |  |  |
Dividends - paid |  | (229,498) |  |  | (229,498) |  |  |
Purchase of treasury shares |  | (95,175) |  |  |  |  | $ (95,175) |
Purchase of treasury shares (in shares) |  |  | 4,210 |  |  |  | 4,210 |
Issuance of common stock (ESPP) |  | 534 |  | 534 |  |  |  |
Issuance of common stock (ESPP) (in shares) |  |  | 24 |  |  |  |  |
Other adjustments to Additional Paid-In-Capital | [2] | (632) |  | (632) |  |  |  |
Net Income |  | 144,827 |  |  | 145,089 |  |  | (262)
Other comprehensive income (loss) |  | 813 |  |  |  | 828 |  | (15)
Ending Balance at Dec. 31, 2018 |  | 1,039,904 | $ 1,248 | 1,210,916 | (52,868) | (23,618) | $ (95,175) | (599)
Ending Balance (in shares) at Dec. 31, 2018 |  |  | 120,585 |  |  |  | 4,210 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Proceeds from stock options exercised |  | $ 1,258 | $ 0 | 1,258 |  |  |  |
Proceeds from stock options exercised (in shares) |  | 78 | 78 |  |  |  |  |
Stock based compensation expense |  | $ 22,344 |  | 22,344 |  |  |  |
Shares withheld for net settlements of share-based awards | [1] | (4,179) | $ (2) | (4,177) |  |  |  |
Shares withheld for net settlements of share-based awards (in shares) | [1] |  | (198) |  |  |  |  |
Restricted stock granted |  | 0 | $ 8 | (8) |  |  |  |
Restricted stock granted (in shares) |  |  | 788 |  |  |  |  |
Restricted stock canceled |  | 0 |  |  |  |  |  |
Restricted stock canceled (in shares) |  |  | 58 |  |  |  |  |
Dividends - paid |  | (232,546) |  |  | (232,546) |  |  |
Purchase of treasury shares |  | 0 |  |  |  |  | $ 0 |
Purchase of treasury shares (in shares) |  |  | 0 |  |  |  | 0 |
Increase in Ownership of Subsidiary |  |  |  | 0 |  |  |  |
Issuance of common stock (ESPP) |  | 532 |  | 532 |  |  |  |
Issuance of common stock (ESPP) (in shares) |  |  | 30 |  |  |  |  |
Net Income |  | 166,412 |  |  | 166,603 |  |  | (191)
Other comprehensive income (loss) |  | 3,291 |  |  |  | 2,315 |  | 8
Other comprehensive income (loss) |  | 2,323 |  |  |  |  |  |
Ending Balance at Dec. 31, 2019 |  | $ 996,048 | $ 1,254 | $ 1,230,865 | $ (119,779) | $ (20,335) | $ (95,175) | $ (782)
Ending Balance (in shares) at Dec. 31, 2019 |  |  | 121,225 |  |  |  | 4,210 |
[1] | During the years ended December 31, 2019, 2018 and 2017, the Company withheld shares through net share settlements to satisfy statutory tax withholding requirements upon vesting of shares of restricted stock held by employees.
[2] | Represents a cumulative-effect adjustment upon adoption of ASU No. 2016-16, "Income Taxes - Intra-Entity Transfers of Assets Other Than Inventory." Refer to Note 1 - Summary of Business Organization, Operations and Significant Accounting Policies - Recent Accounting Pronouncements for further information.

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