Debt - Additional Information (Detail) - USD ($)				3 Months Ended
	Feb. 29, 2016	Aug. 20, 2013	Nov. 10, 2011	Mar. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Credit facility, interest rate description				The applicable margin for borrowings under the Revolving Credit Facility is, based on the calculation of the applicable consolidated total leverage ratio, between 0.50% to 1.50% with respect to base rate borrowings and between 1.50% and 2.50% with respect to LIBOR based borrowings. Interest is due and payable monthly. The interest rate in effect at March 31, 2016 for the Credit Facility was 2.69%.
Credit facility, interest rate margin above federal fund rate				1.00%
Credit facility, interest rate margin above one-month LIBOR rate				1.00%
Credit facility, borrowing rate				2.69%
Credit Facility maturity date				Aug. 20, 2018
Other current assets				$ 18,246,000	$ 21,637,000
Current portion of long-term debt				90,055,000	89,710,000
Other noncurrent assets				36,973,000	33,658,000
Long-term debt				668,859,000	834,449,000
Senior Notes [Member]
Debt Instrument [Line Items]
Senior notes amount outstanding		$ 300,000,000		300,000,000
Issue price percentage of senior notes of the principal amount		100.00%
Percentage of interest rate on notes		6.375%
Maturity date of senior notes		Aug. 15, 2020
Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility amount outstanding				35,000,000
Unused borrowings				190,000,000
Credit facilities, maximum borrowing capacity	$ 250,000,000
Current borrowing capacity due letter of credit	225,000,000
Term Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility amount outstanding				423,900,000
Letters of Credit
Debt Instrument [Line Items]
Unused borrowings				$ 25,000,000
Credit facilities, maximum borrowing capacity	$ 25,000,000
Letter of credit renewal period	6 months
Credit Facility maturity date	Jun. 15, 2016
ASU 2015-03 [Member]
Debt Instrument [Line Items]
Other current assets					(5,600,000)
Current portion of long-term debt					5,600,000
Other noncurrent assets					(8,800,000)
Long-term debt					$ 8,800,000
Credit Agreement | Minimum
Debt Instrument [Line Items]
Credit facility, interest rate margin above base rate				0.50%
Credit facility, interest rate margin above LIBOR rate				1.50%
Credit Agreement | Maximum
Debt Instrument [Line Items]
Credit facility, interest rate margin above base rate				1.50%
Credit facility, interest rate margin above LIBOR rate				2.50%
Credit Agreement | Revolving Credit Facility
Debt Instrument [Line Items]
Credit facilities, maximum borrowing capacity			$ 250,000,000
Credit facilities, maturity			5 years
Credit Agreement | Term Credit Facility [Member]
Debt Instrument [Line Items]
Credit facilities, maximum borrowing capacity			$ 650,000,000
Credit facilities, maturity			5 years
Parent Company and Domestic Subsidiaries [Member]
Debt Instrument [Line Items]
Percentage of capital stock pledged as collateral				100.00%
Foreign Subsidiaries [Member]
Debt Instrument [Line Items]
Percentage of capital stock pledged as collateral				65.00%