Description of Operations and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Description of Operations and Summary of Significant Accounting Policies

Schedule of property and equipment useful lives

Leasehold improvements	Shorter of remaining lease terms or useful life
Equipment, furniture and fixtures	5 - 7 years
Software and computer equipment	3 - 5 years

Schedule of reserve activity for sales allowances, discounts and chargebacks

(In thousands)	Balance at Beginning of Period		Charges		Deductions			Balance at End of Period
Year ended December 31, 2015:
Sales allowances, discounts and chargebacks	$	160	$	3,049	$	(2,451	)	$	758
Year ended December 31, 2016:
Sales allowances, discounts and chargebacks	$	758	$	6,337	$	(6,316	)	$	779

Schedule of anti-dilutive securities

	Year Ended December 31,
(In thousands)	2016		2015		2014
Share issuances under equity incentive plans and ESPP		3,709		4,537		3,475
Restricted shares		33		202		424
Share issuances upon the conversion of convertible senior notes		6,676		—		—
		10,418		4,739		3,899