Stockholder's Equity and Stock-Based Compensation - Additional Information (Detail)									12 Months Ended
	Nov. 18, 2015 shares	Aug. 10, 2015 shares	May. 27, 2015 shares	Dec. 10, 2014 shares	Mar. 25, 2014 shares	Jun. 19, 2013 shares	Feb. 21, 2013 shares	Jan. 11, 2013 shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2014 USD ($) $ / shares shares	Dec. 31, 2013 USD ($) shares	Feb. 04, 2015 USD ($)	Mar. 28, 2014 USD ($)	Jan. 24, 2013 shares	Dec. 31, 2012 USD ($) shares
Shareholders Equity And Share Based Payments [Line Items]
Common stock, outstanding (in shares) | shares									60,008,136	61,534,802
Common stock conversion ratio, Class L common stock into Class A common stock								1.9704
Issuance of Class L common stock (in shares) | shares							11,600,000
Number of preferred stock issuable by BOD | shares									25,000,000	25,000,000
Shares authorized to be repurchased by BOD | $												$ 250,000,000
Stock repurchased during period (shares) | shares									2,200,000
Stock repurchased during period | $									$ 128,100,000
Remaining authorized repurchase amount | $												$ 121,900,000
Shares repurchased (in shares) | shares										5,000,000	0
Shares repurchased | $									128,103,000	$ 221,577,000
Stock-based compensation | $									9,200,000	7,922,000	$ 10,692,000
Stock compensation expense | $									7,900,000
Income tax benefit related to share based compensation | $									3,700,000	3,200,000	4,300,000
Fair value of options that vested | $									2,300,000	3,900,000	9,100,000
Proceeds from issuance of restricted stock | $									3,864,000	4,709,000	0
Proceeds from issuance of common stock upon exercise of options | $									9,811,000	17,422,000	11,040,000
Excess tax benefits from stock-based compensation | $									9,397,000	9,123,000	5,923,000
Tax benefit realized from exercise of stock options | $									11,600,000	12,900,000	$ 8,200,000
2008 Equity Incentive Plan [Member]
Shareholders Equity And Share Based Payments [Line Items]
Stock options, unrecognized compensation cost | $									$ 13,500,000
Stock-based compensation expense | $										$ 5,000,000
Options to purchase common stock | shares										1,300,000
Remaining award requisite service period									2 years
Board of Directors Chairman [Member]
Shareholders Equity And Share Based Payments [Line Items]
Number of preferred stock issuable by BOD | shares											25,000,000
Common Class A [Member]
Shareholders Equity And Share Based Payments [Line Items]
Reverse split ratio of class A common stock								1.9704
Number of preferred stock issuable by BOD | shares								25,000,000
Common Class A [Member] | 2008 Equity Incentive Plan [Member]
Shareholders Equity And Share Based Payments [Line Items]
Shares available for issuance | shares									1,500,000.0
Common Stock Class L [Member]
Shareholders Equity And Share Based Payments [Line Items]
Common stock, outstanding | $															$ 854,100,000
Common stock, outstanding (in shares) | shares															1,300,000
Common stock conversion ratio, Class L common stock into Class A common stock								35.1955
Common Stock Class L [Member] | 2008 Equity Incentive Plan [Member]
Shareholders Equity And Share Based Payments [Line Items]
Shares available for issuance | shares									150,000
Undesignated Preferred Stock [Member]
Shareholders Equity And Share Based Payments [Line Items]
Common stock reclassified, authorized (in shares) | shares											25,000,000
2012 Omnibus Long-Term Incentive Plan [Member]
Shareholders Equity And Share Based Payments [Line Items]
Shares available for grant (in shares) | shares									2,900,000
Shares available for issuance | shares														5,000,000
2012 Omnibus Long-Term Incentive Plan [Member] | Minimum [Member]
Shareholders Equity And Share Based Payments [Line Items]
Option expiration									7 years
Five Year Service Period Based Stock Option [Member]
Shareholders Equity And Share Based Payments [Line Items]
Requisite service period									5 years
Five Year Service Period Based Stock Option [Member] | Second Anniversary [Member]
Shareholders Equity And Share Based Payments [Line Items]
Vesting percentage									60.00%
Five Year Service Period Based Stock Option [Member] | Third Anniversary [Member]
Shareholders Equity And Share Based Payments [Line Items]
Vesting percentage									20.00%
Five Year Service Period Based Stock Option [Member] | Fourth Anniversary [Member]
Shareholders Equity And Share Based Payments [Line Items]
Vesting percentage									20.00%
Five Year Service Period Based Stock Option [Member] | Fifth Anniversary [Member]
Shareholders Equity And Share Based Payments [Line Items]
Vesting percentage									20.00%
Restricted Stock Units (RSUs) [Member]
Shareholders Equity And Share Based Payments [Line Items]
Ratable\Cliff vesting period									5 years
Granted (in shares) | shares									9,000	6,066
Equity instruments other than options, outstanding (in shares) | shares									15,066
Equity instruments other than options, aggregate intrinsic value, outstanding | $									$ 800,000
Granted (in dollars per share) | $ / shares									$ 53.18	$ 39.58
Selling, General and Administrative Expenses [Member]
Shareholders Equity And Share Based Payments [Line Items]
Stock compensation expense | $									$ 8,700,000	$ 7,300,000	$ 10,700,000
Cost of Sales [Member]
Shareholders Equity And Share Based Payments [Line Items]
Stock compensation expense | $									500,000	600,000
Secondary Offering [Member]
Shareholders Equity And Share Based Payments [Line Items]
Issuance of Class L common stock (in shares) | shares	3,650,000	3,000,000	3,000,000	8,000,000	7,900,000	9,800,000
Shares authorized to be repurchased by BOD | $													$ 225,000,000.0
Shares repurchased (in shares) | shares	150,000	700,000	1,250,000	4,500,000
Restricted Stock [Member]
Shareholders Equity And Share Based Payments [Line Items]
Compensation not yet recognized | $									$ 4,100,000
Percentage of price of Common Stock that preferred shares sold for									50.00%
Restricted Stock [Member] | Selling, General and Administrative Expenses [Member]
Shareholders Equity And Share Based Payments [Line Items]
Stock compensation expense | $									$ 2,900,000	1,600,000
Common Stock [Member]
Shareholders Equity And Share Based Payments [Line Items]
Issuance of Class L common stock (in shares) | shares											11,615,000
Options, exercises in period, intrinsic value | $									$ 28,900,000	$ 32,300,000	$ 15,400,000
Granted (in shares) | shares									481,700
Granted (in dollars per share) | $ / shares									$ 51.26
Sponsor [Member]
Shareholders Equity And Share Based Payments [Line Items]
Stock repurchased during period (shares) | shares									2,100,000
Sponsor [Member] | Secondary Offering [Member]
Shareholders Equity And Share Based Payments [Line Items]
Shares repurchased (in shares) | shares				4,500,000