CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) Statement - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]
Common stock, issued	103,130,300	103,130,300				31,943,599
Additional paid-in capital | Accounting Standards Update 2014-09 [Member]	$ 715,475		$ 715,475
Retained earnings	305,208
Retained earnings | Accounting Standards Update 2014-09 [Member]	1,065,507			$ 1,065,507
Accumulated other comprehensive income | Accounting Standards Update 2014-09 [Member]	1,388				$ 1,388
Total stockholders’ equity		$ 10,313				$ (1,316,499)
Total stockholders’ equity | Accounting Standards Update 2014-09 [Member]	476,184
Net income	38,066			38,066
Total other comprehensive income (loss)	(423)				(423)
Exercise of stock options (in shares)		90,009
Exercise of stock options, amount	3,711	$ 9	3,702
Issuance of restricted stock units and net share settlement related to withholding taxes (in shares)		58,829
Issuance of restricted stock units and net share settlement related to withholding taxes, amount	(3,284)	$ 6	(3,290)
Repurchase of common stock (in shares)						473,376
Repurchase of common stock, amount	(50,000)					$ 50,000
Stock-based compensation	8,865		8,865
Net income	97,282
Total other comprehensive income (loss)	(1,317)
Common stock, issued		103,279,138				32,416,975
Additional paid-in capital			724,752
Retained earnings				1,103,573
Accumulated other comprehensive income					965
Total stockholders’ equity	473,119	$ 10,328				$ (1,366,499)
Net income	59,217			59,217
Total other comprehensive income (loss)	(895)				(895)
Exercise of stock options (in shares)		15,902
Exercise of stock options, amount	759	$ 2	757
Issuance of restricted stock units and net share settlement related to withholding taxes (in shares)		100,643
Issuance of restricted stock units and net share settlement related to withholding taxes, amount	(6,341)	$ 10	(6,351)
Repurchase of common stock (in shares)						1,175,531
Repurchase of common stock, amount	(100,000)					$ 100,000
Stock-based compensation	$ 6,335		6,335
Common stock, issued	103,395,683	103,395,683				33,592,506
Additional paid-in capital	$ 725,493		$ 725,493
Retained earnings	1,162,790			$ 1,162,790
Accumulated other comprehensive income	70				$ 70
Total stockholders’ equity	$ 432,194	$ 10,340				$ (1,466,499)