Goodwill and Intangibles - Summary of Goodwill Impairment Tests (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Oct. 31, 2015
Goodwill [Line Items]
Impairment charge		$ 10,318
Personal Information Services on October 31, 2016 [Member]
Goodwill [Line Items]
Impairment Test Date	Oct. 31, 2016
Fair value substantially in excess of carrying value	Yes
Insurance and Other Consumer Services on August 31, 2016 [Member]
Goodwill [Line Items]
Impairment Test Date	Aug. 31, 2016
Fair value substantially in excess of carrying value	Yes
Insurance and Other Consumer Services on December 31, 2015 [Member]
Goodwill [Line Items]
Impairment Test Date	Dec. 31, 2015
Fair value substantially in excess of carrying value	No
Impairment charge		$ 10,318
Insurance and Other Consumer Services on October 31, 2015 [Member]
Goodwill [Line Items]
Impairment Test Date	Oct. 31, 2015
Fair value substantially in excess of carrying value	No
Percentage, if not substantially in excess			18.00%
Personal Information Services on September 30, 2015 [Member]
Goodwill [Line Items]
Impairment Test Date	Sep. 30, 2015
Fair value substantially in excess of carrying value	Yes