Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Numerator:
Net income available to common stockholders — basic and diluted	$ 49,854	$ 20,716
Denominator:
Shares used in calculation — basic	542,549,512	521,440,822
Incremental shares attributed to non-vested share-based awards	1,354,908	376,672
Weighted average common shares outstanding — diluted	543,904,420	521,817,494
Net income per share — basic	$ 0.09	$ 0.04
Net income per share — diluted	$ 0.09	$ 0.04
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net income available to common stockholders — diluted	$ 49,854	$ 20,716
Restricted Stock Units (RSUs)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted EPS	112,598	87,043
2019 Convertible Notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted EPS		12,490,742
2022 Convertible Notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted EPS	15,100,443	15,100,443