Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands |
Total |
Cumulative effect of adoption of ASU 2017-12 |
Common Stock |
Additional Paid-in Capital |
Accumulated Other Comprehensive Loss |
Accumulated Other Comprehensive Loss
Cumulative effect of adoption of ASU 2017-12
|
Retained Earnings (Deficit) |
Retained Earnings (Deficit)
Cumulative effect of adoption of ASU 2017-12
|
Treasury Stock |
Beginning Balance (in shares) at Dec. 31, 2018 |
|
|
95,991,000
|
|
|
|
|
|
2,341,000
|
Beginning Balance at Dec. 31, 2018 |
$ 1,063,024
|
$ 0
|
$ 96
|
$ 1,187,683
|
$ (492)
|
$ 25
|
$ (58,793)
|
$ (25)
|
$ (65,470)
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
Public offering of common stock, net (in shares) |
|
|
154,000
|
|
|
|
|
|
|
Public offering of common stock, net |
9,846
|
|
|
9,846
|
|
|
|
|
|
Stock option exercises (in shares) |
|
|
19,000
|
|
|
|
|
|
138,000
|
Stock option exercises |
3,069
|
|
|
(1,277)
|
|
|
|
|
$ 4,346
|
Issuance of restricted stock (in shares) |
|
|
|
|
|
|
|
|
1,268,000
|
Issuance of restricted stock |
0
|
|
|
(38,999)
|
|
|
|
|
$ 38,999
|
Treasury stock purchase, at cost (in shares) |
|
|
|
|
|
|
|
|
369,000
|
Treasury stock purchased, at cost |
$ (11,108)
|
|
|
1,620
|
|
|
|
|
$ (12,728)
|
Retirement of treasury stock (in shares) |
0
|
|
(12,000)
|
|
|
|
|
|
(12,000)
|
Retirement of treasury stock |
$ 0
|
|
|
(152)
|
|
|
(592)
|
|
$ 744
|
Stock-based compensation |
31,154
|
|
|
31,154
|
|
|
|
|
|
Other comprehensive loss - derivative instruments |
(2,020)
|
|
|
|
(2,020)
|
|
|
|
|
Foreign currency translation adjustment |
19
|
|
|
|
19
|
|
|
|
|
Net income |
26,335
|
|
|
|
|
|
26,335
|
|
|
Ending Balance (in shares) at Jun. 30, 2019 |
|
|
96,152,000
|
|
|
|
|
|
1,292,000
|
Ending Balance at Jun. 30, 2019 |
1,120,319
|
|
$ 96
|
1,189,875
|
(2,468)
|
|
(33,075)
|
|
$ (34,109)
|
Beginning Balance (in shares) at Mar. 31, 2019 |
|
|
95,998,000
|
|
|
|
|
|
1,265,000
|
Beginning Balance at Mar. 31, 2019 |
1,085,375
|
|
$ 96
|
1,167,950
|
(1,372)
|
|
(47,546)
|
|
$ (33,753)
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
Public offering of common stock, net (in shares) |
|
|
154,000
|
|
|
|
|
|
|
Public offering of common stock, net |
9,846
|
|
|
9,846
|
|
|
|
|
|
Stock option exercises (in shares) |
|
|
12,000
|
|
|
|
|
|
49,000
|
Stock option exercises |
1,192
|
|
|
(440)
|
|
|
|
|
$ 1,632
|
Issuance of restricted stock (in shares) |
|
|
|
|
|
|
|
|
138,000
|
Issuance of restricted stock |
0
|
|
|
(4,543)
|
|
|
|
|
$ 4,543
|
Treasury stock purchase, at cost (in shares) |
|
|
|
|
|
|
|
|
226,000
|
Treasury stock purchased, at cost |
$ (6,092)
|
|
|
1,183
|
|
|
|
|
$ (7,275)
|
Retirement of treasury stock (in shares) |
0
|
|
(12,000)
|
|
|
|
|
|
(12,000)
|
Retirement of treasury stock |
$ 0
|
|
|
(152)
|
|
|
(592)
|
|
$ 744
|
Stock-based compensation |
16,031
|
|
|
16,031
|
|
|
|
|
|
Other comprehensive loss - derivative instruments |
(1,214)
|
|
|
|
(1,214)
|
|
|
|
|
Foreign currency translation adjustment |
118
|
|
|
|
118
|
|
|
|
|
Net income |
15,063
|
|
|
|
|
|
15,063
|
|
|
Ending Balance (in shares) at Jun. 30, 2019 |
|
|
96,152,000
|
|
|
|
|
|
1,292,000
|
Ending Balance at Jun. 30, 2019 |
1,120,319
|
|
$ 96
|
1,189,875
|
(2,468)
|
|
(33,075)
|
|
$ (34,109)
|
Beginning Balance (in shares) at Dec. 31, 2019 |
|
|
96,100,000
|
|
|
|
|
|
1,356,000
|
Beginning Balance at Dec. 31, 2019 |
1,172,926
|
|
$ 96
|
1,222,356
|
(2,348)
|
|
(7,695)
|
|
$ (39,483)
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
Public offering of common stock, net (in shares) |
|
|
5,847,000
|
|
|
|
|
|
|
Public offering of common stock, net |
334,126
|
|
$ 6
|
334,120
|
|
|
|
|
|
Stock option exercises (in shares) |
|
|
232,000
|
|
|
|
|
|
250,000
|
Stock option exercises |
7,722
|
|
|
(676)
|
|
|
|
|
$ 8,398
|
Issuance of restricted stock (in shares) |
|
|
37,000
|
|
|
|
|
|
1,376,000
|
Issuance of restricted stock |
0
|
|
|
(40,752)
|
|
|
|
|
$ 40,752
|
Treasury stock purchase, at cost (in shares) |
|
|
|
|
|
|
|
|
486,000
|
Treasury stock purchased, at cost |
$ (6,243)
|
|
|
7,951
|
|
|
|
|
$ (14,194)
|
Retirement of treasury stock (in shares) |
0
|
|
(10,000)
|
|
|
|
|
|
|
Retirement of treasury stock |
$ (640)
|
|
|
(124)
|
|
|
(516)
|
|
|
Stock-based compensation |
26,341
|
|
|
26,341
|
|
|
|
|
|
Purchase of capped call instrument |
(39,365)
|
|
|
(39,365)
|
|
|
|
|
|
Equity component of convertible senior notes, net of issuance costs and deferred tax |
51,821
|
|
|
51,821
|
|
|
|
|
|
Other comprehensive loss - derivative instruments |
(3,454)
|
|
|
|
(3,454)
|
|
|
|
|
Foreign currency translation adjustment |
(325)
|
|
|
|
(325)
|
|
|
|
|
Net income |
16,906
|
|
|
|
|
|
16,906
|
|
|
Ending Balance (in shares) at Jun. 30, 2020 |
|
|
102,206,000
|
|
|
|
|
|
216,000
|
Ending Balance at Jun. 30, 2020 |
1,559,815
|
|
$ 102
|
1,561,672
|
(6,127)
|
|
8,695
|
|
$ (4,527)
|
Beginning Balance (in shares) at Mar. 31, 2020 |
|
|
96,288,000
|
|
|
|
|
|
11,000
|
Beginning Balance at Mar. 31, 2020 |
1,190,843
|
|
$ 96
|
1,199,209
|
(6,268)
|
|
(2,090)
|
|
$ (104)
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
Public offering of common stock, net (in shares) |
|
|
5,847,000
|
|
|
|
|
|
|
Public offering of common stock, net |
334,126
|
|
$ 6
|
334,120
|
|
|
|
|
|
Stock option exercises (in shares) |
|
|
44,000
|
|
|
|
|
|
99,000
|
Stock option exercises |
2,816
|
|
|
(1,026)
|
|
|
|
|
$ 3,842
|
Issuance of restricted stock (in shares) |
|
|
37,000
|
|
|
|
|
|
31,000
|
Issuance of restricted stock |
0
|
|
|
(303)
|
|
|
|
|
$ 303
|
Treasury stock purchase, at cost (in shares) |
|
|
|
|
|
|
|
|
335,000
|
Treasury stock purchased, at cost |
$ (2,750)
|
|
|
5,818
|
|
|
|
|
$ (8,568)
|
Retirement of treasury stock (in shares) |
0
|
|
(10,000)
|
|
|
|
|
|
|
Retirement of treasury stock |
$ (640)
|
|
|
(124)
|
|
|
(516)
|
|
|
Stock-based compensation |
11,522
|
|
|
11,522
|
|
|
|
|
|
Purchase of capped call instrument |
(39,365)
|
|
|
(39,365)
|
|
|
|
|
|
Equity component of convertible senior notes, net of issuance costs and deferred tax |
51,821
|
|
|
51,821
|
|
|
|
|
|
Other comprehensive loss - derivative instruments |
(39)
|
|
|
|
(39)
|
|
|
|
|
Foreign currency translation adjustment |
180
|
|
|
|
180
|
|
|
|
|
Net income |
11,301
|
|
|
|
|
|
11,301
|
|
|
Ending Balance (in shares) at Jun. 30, 2020 |
|
|
102,206,000
|
|
|
|
|
|
216,000
|
Ending Balance at Jun. 30, 2020 |
$ 1,559,815
|
|
$ 102
|
$ 1,561,672
|
$ (6,127)
|
|
$ 8,695
|
|
$ (4,527)
|