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Stockholders' Equity - Additional Information 1 (Detail) - USD ($)		1 Months Ended	3 Months Ended
		Feb. 29, 2016	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Period in the beginning of each year to award Performance Share Unit			90 days
PSU awards performance period		3 years
PSU awards performance period beginning date		Jan. 01, 2016
PSU awards performance period Ending date		Dec. 31, 2018
Allocated share based compensation expense	[1]		$ 14,400,000	$ 18,300,000
Liability for SARs			4,000,000
Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Payment due to exercise SARs			$ 1,000,000	4,000,000
Time - Vesting Inducement Award [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Inducement award granted			75,000
Grant date fair value			$ 39.95
Inducement award service expiration date			Dec. 31, 2017
Performance - Vesting Inducement Award [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Inducement award granted			75,000
Grant date fair value			$ 12.55
Target level for the determination of performance goals and measures			100.00%
Performance Period			2 years
Performance - Vesting Inducement Award [Member] | Scenario, Forecast [Member] | Tranche One [Member] |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cumulative total stockholder return					25.00%
Performance - Vesting Inducement Award [Member] | Minimum [Member] | Scenario, Forecast [Member] | Tranche One [Member] |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock Price					$ 43.70
Performance - Vesting Inducement Award [Member] | Minimum [Member] | Scenario, Forecast [Member] | Tranche Two [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock Price					$ 55
Three-year PSU Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Performance Period			3 years
2016 Three-year PSU Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Target level for the determination of performance goals and measures for adjusted EBITDA goal		50.00%
Weighted average return on total share holders		50.00%
2016 Three-year PSU Awards [Member] | Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares to be issued as percentage of target shares under performance incentive plan		0.00%
2016 Three-year PSU Awards [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares to be issued as percentage of target shares under performance incentive plan		200.00%
2013 Three-year PSU Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares to be issued as percentage of target shares under performance incentive plan		200.00%
Shares to be issued under performance incentive plan		1,074,017
Stock Appreciation Rights (“SARs”) [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Allocated share based compensation expense			$ 1,000,000	$ 3,000,000
[1] The amounts included above do not include the expense related to our U.S. profit sharing contributions made in the form of our common stock or the expense or income related to SARs and certain cash-based awards. See Stock Appreciation Rights below for further details of SARs. At March 31, 2016 and March 31, 2015, our other cash-based awards were not material to our Condensed Consolidated Balance Sheet or Statement of Operations.

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