Stockholders' Equity (Details Textual) $ / shares in Units, $ in Thousands						6 Months Ended	78 Months Ended	102 Months Ended
	Feb. 16, 2021 USD ($) $ / shares shares	Feb. 08, 2021	Jun. 30, 2015 shares	Dec. 31, 2013 shares	Nov. 14, 2013 shares	Jun. 30, 2022 USD ($) shares	Jun. 30, 2022 USD ($) shares	Jun. 30, 2022 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)						0
Exercises in period, intrinsic value | $						$ 136
Compensation cost not yet recognized, options | $						$ 340	$ 340	$ 340
Stock split, conversion ratio		3
Public Stock Offering
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Sale of stock, number of shares issued in transaction	7,961,538
Sale of stock, price per share (in dollars per share) | $ / shares	$ 65.00
Sale of stock, consideration received on transaction | $	$ 500,034
Payments of stock issuance costs | $	$ 17,466
Public Stock Offering - Additional Optional Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Sale of stock, number of shares issued in transaction	1,038,459
Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost not yet recognized, period for recognition						1 year 4 months 24 days
Restricted Stock Units and Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost not yet recognized, period for recognition						2 years 6 months 10 days
Compensation cost not yet recognized, non-option | $						$ 309,222	$ 309,222	$ 309,222
The 2005 Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, capital shares reserved for future issuance (in shares)				14,139,957
Granted (in shares)								0
Shares available for grant (in shares)						0	0	0
The 2005 Stock Plan | Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)				4 years
The 2013 Omnibus Equity Award Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, capital shares reserved for future issuance (in shares)					5,713,899
Vesting period (in years)					4 years
Percentage of outstanding stock reserved for grant					4.00%
Percentage of outstanding stock maximum					5.00%
Capital shares reserved for future issuance, annual increase, maximum (in shares)						24,217,741	24,217,741	24,217,741
2015 ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum employee subscription rate			15.00%
Purchase price of common stock, percent			85.00%
Number of shares authorized (in shares)			1,500,000
Percent of shares increase, employee stock purchase plan			1.00%
Common stock availability threshold, Employee Stock Purchase Plan			2.00%
Shares increase threshold, employee stock purchase plan (in shares)			1,200,000
Number of additional shares authorized (in shares)							3,004,765