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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive Loss
--- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Mar. 31, 2018 |  | 30,447,000 |  |  |
Beginning balance at Mar. 31, 2018 | $ 940,779 | $ 304 | $ 167,587 | $ 785,871 | $ (12,983)
Cumulative adjustment from adoption of new accounting guidance at Mar. 31, 2018 | 720 |  |  | 720 |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Stock compensation expense (in shares) |  | 2,000 |  |  |
Stock compensation expense | 3,526 |  | 3,526 |  |
Shares issued upon vesting (in shares) |  | 6,000 |  |  |
Shares issued upon vesting | 0 |  |  |  |
Shares withheld for taxes | (328) |  | (328) |  |
Repurchases of common stock (in shares) |  | (86,000) |  |  |
Repurchases of common stock | (9,999) |  |  | (9,999) |
Net (loss) income | (30,407) |  |  | (30,407) |
Total other comprehensive loss | (2,140) |  |  |  | (2,140)
Ending balance (in shares) at Jun. 30, 2018 |  | 30,369,000 |  |  |
Ending balance at Jun. 30, 2018 | 902,151 | $ 304 | 170,785 | 746,185 | (15,123)
Beginning balance (in shares) at Mar. 31, 2018 |  | 30,447,000 |  |  |
Beginning balance at Mar. 31, 2018 | 940,779 | $ 304 | 167,587 | 785,871 | (12,983)
Cumulative adjustment from adoption of new accounting guidance at Mar. 31, 2018 | $ 720 |  |  | 720 |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Repurchases of common stock (in shares) | (1,400,699) |  |  |  |
Repurchases of common stock | $ (161,395) |  |  |  |
Net (loss) income | 240,339 |  |  |  |
Total other comprehensive loss | (9,545) |  |  |  |
Ending balance (in shares) at Dec. 31, 2018 |  | 29,128,000 |  |  |
Ending balance at Dec. 31, 2018 | 1,017,881 | $ 291 | 174,821 | 865,297 | (22,528)
Beginning balance (in shares) at Jun. 30, 2018 |  | 30,369,000 |  |  |
Beginning balance at Jun. 30, 2018 | 902,151 | $ 304 | 170,785 | 746,185 | (15,123)
Cumulative adjustment from adoption of new accounting guidance at Jun. 30, 2018 | (252) |  |  | (252) |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Stock compensation expense (in shares) |  | 2,000 |  |  |
Stock compensation expense | 3,926 |  | 3,926 |  |
Shares issued upon vesting (in shares) |  | 65,000 |  |  |
Shares issued upon vesting | 475 | $ 1 | 474 |  |
Shares withheld for taxes | (4,091) |  | (4,091) |  |
Repurchases of common stock (in shares) |  | (1,065,000) |  |  |
Repurchases of common stock | (124,736) | $ (11) |  | (124,725) |
Net (loss) income | 74,372 |  |  | 74,372 |
Total other comprehensive loss | (5,058) |  |  |  | (5,058)
Ending balance (in shares) at Sep. 30, 2018 |  | 29,371,000 |  |  |
Ending balance at Sep. 30, 2018 | 846,787 | $ 294 | 171,094 | 695,580 | (20,181)
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Stock compensation expense (in shares) |  | 2,000 |  |  |
Stock compensation expense | 4,037 |  | 4,037 |  |
Shares issued upon vesting (in shares) |  | 5,000 |  |  |
Shares issued upon vesting | 0 |  |  |  |
Shares withheld for taxes | (310) |  | (310) |  |
Repurchases of common stock (in shares) |  | (250,000) |  |  |
Repurchases of common stock | (26,660) | $ (3) |  | (26,657) |
Net (loss) income | 196,374 |  |  | 196,374 |
Total other comprehensive loss | (2,347) |  |  |  | (2,347)
Ending balance (in shares) at Dec. 31, 2018 |  | 29,128,000 |  |  |
Ending balance at Dec. 31, 2018 | $ 1,017,881 | $ 291 | $ 174,821 | $ 865,297 | $ (22,528)

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