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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Preferred stock | Common stock Common Class A | Common stock Common Class B | Additional paid-in capital | Retained earnings | Accumulated other comprehensive (loss) earnings | Noncontrolling interests
--- | --- | --- | --- | --- | --- | --- | --- | ---
Balance (in shares) at Dec. 31, 2017 |  | 0 | 29,341,517 | 11,468,587 |  |  |  |
Balance at Dec. 31, 2017 | $ 2,165,387 | $ 0 | $ 293 | $ 115 | $ 521 | $ 2,143,983 | $ 4,617 | $ 15,858
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Issuance of noncontrolling interests | 847 |  |  |  |  |  |  | 847
Net income (loss) | 205,849 |  |  |  |  | 206,287 |  | (438)
Other comprehensive income (loss) | 101 |  |  |  |  |  | 101 |
Distribution to noncontrolling interests | (351) |  |  |  |  |  |  | (351)
Cash dividends on Class A and Class B common stock | (19,539) |  |  |  |  | (19,539) |  |
Issuance of common stock, net of forfeitures (in shares) |  |  | 319,365 |  |  |  |  |
Issuance of common stock, net of forfeitures | 4,665 |  | $ 3 |  | 4,662 |  |  |
Compensation expense for stock based awards | 4,526 |  |  |  | 4,526 |  |  |
Repurchase of common stock (in shares) |  |  | (319,091) |  |  |  |  |
Repurchase of common stock | (16,520) |  | $ (3) |  | (4,801) | (11,716) |  |
Acquisition of noncontrolling interest | (19,101) |  |  |  |  | (13,449) |  | (5,652)
Balance at Sep. 30, 2018 | 2,327,128 | $ 0 | $ 293 | $ 115 | 4,908 | 2,307,573 | 3,975 | 10,264
Balance (in shares) at Sep. 30, 2018 |  | 0 | 29,341,791 | 11,468,587 |  |  |  |
Balance (in shares) at Jun. 30, 2018 |  | 0 | 29,331,002 | 11,468,587 |  |  |  |
Balance at Jun. 30, 2018 | 2,286,703 | $ 0 | $ 293 | $ 115 | 2,586 | 2,271,171 | 2,704 | 9,834
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Issuance of noncontrolling interests | 326 |  |  |  |  |  |  | 326
Net income (loss) | 43,126 |  |  |  |  | 42,927 |  | 199
Other comprehensive income (loss) | 1,271 |  |  |  |  |  | 1,271 |
Distribution to noncontrolling interests | (95) |  |  |  |  |  |  | (95)
Cash dividends on Class A and Class B common stock | (6,525) |  |  |  |  | (6,525) |  |
Issuance of common stock, net of forfeitures (in shares) |  |  | 14,086 |  |  |  |  |
Issuance of common stock, net of forfeitures | 580 |  |  |  | 580 |  |  |
Compensation expense for stock based awards | 1,934 |  |  |  | 1,934 |  |  |
Repurchase of common stock (in shares) |  |  | (3,297) |  |  |  |  |
Repurchase of common stock | (192) |  |  |  | (192) |  |  |
Balance at Sep. 30, 2018 | 2,327,128 | $ 0 | $ 293 | $ 115 | 4,908 | 2,307,573 | 3,975 | 10,264
Balance (in shares) at Sep. 30, 2018 |  | 0 | 29,341,791 | 11,468,587 |  |  |  |
Balance (in shares) at Dec. 31, 2018 |  | 0 | 28,798,464 | 11,459,641 |  |  |  |
Balance at Dec. 31, 2018 | 2,314,779 | $ 0 | $ 288 | $ 115 | 622 | 2,299,556 | 3,883 | 10,315
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Issuance of noncontrolling interests | 4,217 |  |  |  |  |  |  | 4,217
Net income (loss) | 99,461 |  |  |  |  | 99,423 |  | 38
Other comprehensive income (loss) | (993) |  |  |  |  |  | (993) |
Distribution to noncontrolling interests | (3,978) |  |  |  |  |  |  | (3,978)
Cash dividends on Class A and Class B common stock | (21,546) |  |  |  |  | (21,546) |  |
Issuance of common stock, net of forfeitures (in shares) |  |  | 156,874 |  |  |  |  |
Issuance of common stock, net of forfeitures | 4,401 |  | $ 1 |  | 4,400 |  |  |
Compensation expense for stock based awards | 4,663 |  |  |  | 4,663 |  |  |
Repurchase of common stock (in shares) |  |  | (723,832) |  |  |  |  |
Repurchase of common stock | (40,262) |  | $ (7) |  | (6,007) | (34,248) |  |
Conversion of common stock (in shares) |  |  | 180,000 | (180,000) |  |  |  |
Conversion of common stock |  |  | $ 2 | $ (2) |  |  |  |
Balance at Sep. 30, 2019 | 2,354,665 | $ 0 | $ 284 | $ 113 | 3,678 | 2,343,185 | 2,890 | 4,515
Balance (in shares) at Sep. 30, 2019 |  | 0 | 28,411,506 | 11,279,641 |  |  |  |
Balance (in shares) at Jun. 30, 2019 |  | 0 | 28,399,526 | 11,279,641 |  |  |  |
Balance at Jun. 30, 2019 | 2,326,618 | $ 0 | $ 284 | $ 113 | 1,670 | 2,317,115 | 3,144 | 4,292
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Issuance of noncontrolling interests | 4,165 |  |  |  |  |  |  | 4,165
Net income (loss) | 33,135 |  |  |  |  | 33,212 |  | (77)
Other comprehensive income (loss) | (254) |  |  |  |  |  | (254) |
Distribution to noncontrolling interests | (3,865) |  |  |  |  |  |  | (3,865)
Cash dividends on Class A and Class B common stock | (7,142) |  |  |  |  | (7,142) |  |
Issuance of common stock, net of forfeitures (in shares) |  |  | 15,345 |  |  |  |  |
Issuance of common stock, net of forfeitures | 524 |  |  |  | 524 |  |  |
Compensation expense for stock based awards | 1,705 |  |  |  | 1,705 |  |  |
Repurchase of common stock (in shares) |  |  | (3,365) |  |  |  |  |
Repurchase of common stock | (221) |  |  |  | (221) |  |  |
Balance at Sep. 30, 2019 | $ 2,354,665 | $ 0 | $ 284 | $ 113 | $ 3,678 | $ 2,343,185 | $ 2,890 | $ 4,515
Balance (in shares) at Sep. 30, 2019 |  | 0 | 28,411,506 | 11,279,641 |  |  |  |

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- 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4568740-111683 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4I -URI http://asc.fasb.org/extlink&oid=116874947&loc=SL4590271-111686 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4568447-111683 + Details
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Data Type: | xbrli:monetaryItemType
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Period Type: | instant