Stockholders' Equity - Additional Information (Detail)								1 Months Ended	3 Months Ended													12 Months Ended				36 Months Ended	39 Months Ended	43 Months Ended
	Mar. 04, 2015 USD ($) $ / shares	Jan. 02, 2015 USD ($) shares	Dec. 09, 2014	Jul. 08, 2014 USD ($) $ / shares shares	Jul. 23, 2013 USD ($)	Apr. 07, 2011 USD ($) $ / shares shares	Mar. 15, 2011	Mar. 31, 2015 shares	Dec. 31, 2015 USD ($) $ / shares shares	Sep. 30, 2015 shares	Jun. 30, 2015 shares	Mar. 31, 2015 shares	Dec. 31, 2014 USD ($) $ / shares shares	Sep. 30, 2014 shares	Jun. 30, 2014 shares	Mar. 31, 2014 shares	Dec. 31, 2013 shares	Sep. 30, 2013 shares	Jun. 30, 2013 shares	Mar. 31, 2013 shares	Dec. 31, 2012 USD ($) shares	Dec. 31, 2015 USD ($) individual $ / shares shares	Dec. 31, 2014 USD ($) individual $ / shares shares	Dec. 31, 2013 USD ($) individual shares	Dec. 31, 2012 USD ($) employee shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares	Jan. 04, 2016 USD ($)	Jan. 01, 2015 USD ($)	Nov. 30, 2014 shares	Jan. 01, 2014 USD ($)	Dec. 13, 2013 employee	Dec. 27, 2012 USD ($) employee	Aug. 01, 2012 USD ($)	May. 16, 2012 shares	Jan. 03, 2011 USD ($)	Jan. 01, 2010 USD ($)	Jan. 01, 2009 USD ($)	Jul. 31, 2008 USD ($)	Aug. 01, 2007 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock authorized (shares)									75,000,000				75,000,000									75,000,000	75,000,000			75,000,000	75,000,000	75,000,000
Common stock par value (shares) | $ / shares									$ 0.0001				$ 0.0001									$ 0.0001	$ 0.0001			$ 0.0001	$ 0.0001	$ 0.0001
Preferred stock authorized (shares)									25,000,000				25,000,000									25,000,000	25,000,000			25,000,000	25,000,000	25,000,000
Preferred stock par value (usd per share) | $ / shares									$ 0.0001				$ 0.0001									$ 0.0001	$ 0.0001			$ 0.0001	$ 0.0001	$ 0.0001
Stock options outstanding (shares)									0				0									0	0			0	0	0
Total Number of Shares Purchased (shares)									189,438	502,942	177,330	247,797	263,772	0	0	0	0	0	108,459	0		1,117,507	263,772	108,459		1,489,738
Common stock outstanding (shares)									20,886,261				21,978,762									20,886,261	21,978,762			20,886,261	20,886,261	20,886,261
Preferred stock outstanding (shares)									0				0									0	0			0	0	0
Dividend declaration date	Feb. 24, 2016
Dividend rate | $ / shares	$ 0.125
Dividends declared | $	$ 2,600,000
Common stock repurchase program, authorized amount (shares) | $																														$ 15,000,000.0		$ 15,000,000.0			$ 25,000,000.0		$ 25,000,000.0	$ 25,000,000.0	$ 25,000,000.0	$ 50,000,000.0
Shares acquired under common stock repurchase program (shares)																						897,177
Treasury stock acquired | $																						$ 15,000,000
Common stock repurchased, shares									7,429,453													7,429,453				7,429,453	7,429,453	7,429,453
Common stock purchases, value | $									$ 79,000,000													$ 79,000,000				$ 79,000,000	$ 79,000,000	$ 79,000,000
Additional paid-in capital | $									$ 110,400,000				$ 126,700,000									110,400,000	$ 126,700,000			$ 110,400,000	$ 110,400,000	$ 110,400,000
Adjustments to additional paid in capital | $																						$ (16,300,000)
Maximum equity securities available under 2012 Equity Plan (shares)									1,483,235													1,483,235				1,483,235	1,483,235	1,483,235								2,194,986
Granted (shares)										6,242	5,494	4,823	5,328	7,110	6,006	5,093	6,475	6,266	4,606	4,712	5,350						67,505
Amortized period							45 months
Total stock based compensation | $																						$ 1,868,000	3,838,000	$ 3,045,000
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)																												5,820
Non-Executive Directors Restricted Stock Units RSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation | $																						300,000	200,000	200,000
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award requisite service period					1 year
2004 Equity Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity securities approved under the 2004 Equity Plan (share)																															1,878,976
2012 Equity Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity securities granted (shares)																																				1,300,000
Equity securities available under the 2004 Equity Plan (shares)																																				894,986
2012 Equity Plan | Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)				5,820
Value of shares granted | $				$ 100,000
Share price (usd per share) | $ / shares				$ 15.74
Total stock based compensation | $																							100,000
2009 LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation | $																							0
2011 Long Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amortization of share based compensation | $																					$ 200,000				$ 200,000									$ 1,600,000
Total stock based compensation | $																						$ 3,400,000	2,800,000	100,000
RSUs at fair value | $																								5,200,000	$ 1,300,000
Number of employees affected due to modification | employee																																	51	18
Fair value of RSUs, net of forfeitures | $																							$ 600,000	$ 500,000
2011 Long Term Incentive Plan | Software Operations
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs at fair value | $						$ 3,000,000
Closing price of common stock (usd per share) | $ / shares						$ 15.68
2011 Long Term Incentive Plan | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)																						260,900						557,484
Restricted stock units and cash dividends forfeited (shares)																					101,294				101,294
Shares outstanding (shares)									242,468				0				617,027				232,966	242,468	0	617,027	232,966	242,468	242,468	242,468
Restricted stock units awarded to certain eligible employees (shares)																								434,811	122,673
Fair value of restricted stock units and cash dividends forfeited | $																									$ 1,400,000
RSUs, forfeited (shares)																								50,750
Options vested and expected to vest (shares)													559,689										559,689
Units expected to be converted													559,689										559,689
Shares sold to company for required income tax withholding (shares)								220,330
Forfeited (shares)																						18,432	57,338					209,382
2011 Long Term Incentive Plan | Restricted Stock Units | Software Operations
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units awarded to certain eligible employees (shares)						211,587
2011 Long Term Incentive Plan | Forfeited
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation | $																									$ 400,000
2015 Long Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amortized period			36 months
Total stock based compensation | $																						$ 1,500,000
2015 Long Term Incentive Plan | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)		254,777																				6,123						260,900
Value of shares granted | $		$ 4,400,000																				$ 100,000
Fair value of restricted stock units and cash dividends forfeited | $																						$ 300,000
Forfeited (shares)																						18,432						18,432
Executive
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of departed employees | employee																									2
Chairperson Of Audit Committee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual payment amount | $					$ 55,000																																				$ 50,000
Value of shares required to hold | $					165,000
Non Executive Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation | $																						$ 400,000	$ 300,000	$ 200,000
Annual payment amount | $					45,000																																				40,000
Value of shares required to hold | $					$ 135,000
Grace period of restricted stock threshold					3 years
Non Executive Directors | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Forfeited (shares)																												3,189
Former Non Executive Director | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Forfeited (shares)																											3,189
Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of individuals who elected stock in lieu of cash for services | individual																						0	0	0
Annually | Chairperson Of Audit Committee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual stock award | $					$ 70,000																																				50,000
Annually | Non Executive Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual stock award | $					$ 60,000																																				$ 40,000
Common Stock Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total Number of Shares Purchased (shares)																						0
Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock repurchase program, authorized amount (shares) | $																													$ 10,000,000.0