Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accounting Policies [Line Items]
Description of royalty revenue									We recognize royalty revenue when earned under the terms of our third party royalty arrangements, provided the fees are considered fixed or determinable and realization of payment is probable. Currently, our third party royalties are variable in nature and such amounts are not considered fixed or determinable until we receive notice of amounts earned. Typically, we receive notice of royalty revenues earned on a quarterly basis in the immediate quarter following the royalty reporting period.
Hosting services minimum range									1 year
Hosting services maximum range									10 years
Hosting services minimum period									5 years
Hosting services maximum period									7 years
Research and development expense									$ 43,154	$ 29,922	$ 25,743
Impairments of intangible assets									0	0	0
Impairments of long-lived assets									0	0	0
Purchase of held to maturity securities									$ 33,500
Grade corporate and municipal bonds, maturity date									2016 through mid-2018
Cost method investment	$ 15,000				$ 15,000				$ 15,000	15,000
Cash and cash equivalents	36,151				33,087				36,151	33,087	206,167	$ 78,876
Unbilled receivables	33,600				29,700				33,600	29,700
Retention payable after completion of the contract	$ 5,000				$ 4,700				5,000	4,700
Recognition of excess tax benefit due to new standard									$ 29,582	$ 0	$ 0
Diluted weighted average shares outstanding (in shares)	38,975	39,062	38,738	39,071	37,864	36,349	36,097	35,895	38,961	36,552	35,401
Convertible Preferred Stock | Record Holdings Pty Limited
Accounting Policies [Line Items]
Cost method investment	$ 15,000								$ 15,000
Investment percentage	20.00%								20.00%
Minimum
Accounting Policies [Line Items]
Vesting period (in years)									3 years
Percentage of retention of billing									5.00%
Maximum
Accounting Policies [Line Items]
Vesting period (in years)									6 years
Percentage of retention of billing									20.00%
Stock Option Plan
Accounting Policies [Line Items]
Contractual term (in years)									10 years
Scenario, Adjustment
Accounting Policies [Line Items]
Diluted weighted average shares outstanding (in shares)									519