Borrowings - Additional Information (Detail)				12 Months Ended
	Apr. 04, 2016 USD ($) shares	Jun. 01, 2015 USD ($)	Jul. 16, 2013 USD ($)	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) shares	Dec. 31, 2014 USD ($) shares	May 16, 2016 USD ($)	May 21, 2014 USD ($)	Jun. 13, 2011 USD ($)	Aug. 09, 2010 USD ($)
Debt Instrument [Line Items]
Interest rate				3.875%	3.875%	3.875%
Convertible note hedge transactions, purchased call options				$ 88,000,000
Convertible note hedge transactions, net of tax				$ 56,000,000
Conversion of convertible notes, shares issued upon conversion | shares	2,170,000			1,700,000	2,700,000	1,900,000
Warrants expiration period				180 days
Strike price of warrants (in dollars per share) | $ / shares				$ 74.65
Proceeds from sale of warrants				$ 59,400,000
Convertible debt, fair value				316,300,000
Initial equity component				83,700,000
Convertible notes, carrying value, net of tax				53,300,000
Proceeds from Convertible Debt				400,000,000
Debt discount				$ 83,700,000
Effective interest rate				7.814%
Shares received from dealer counterparties | shares				400,000
Ownership percentage of subsidiaries				50.00%
Proceeds from accounts receivable securitization		$ 12,100,000
Settlement and exchange of convertible notes with common or treasury stock				$ 35,286,000	$ 133,000	$ 43,000
Total long-term debt				1,033,323,000	1,059,200,000
Reduction in borrowings				714,565,000	303,757,000	480,102,000
Loss on extinguishment of debt				$ 19,261,000	10,454,000	$ 0
Exchange Consideration [Member] | Convertible Debt | Convertible Notes Payable
Debt Instrument [Line Items]
Conversion of convertible notes, shares issued upon conversion | shares				300,000
Extinguishment of debt, amount	$ 219,200,000
Long Term Debt, Repayments Of Principal, Cash Consideration Per Principal Amount	1,000
Reduction in borrowings	220,700,000
Repayments of accrued debt interest	1,500,000
Loss on extinguishment of debt	$ 16,300,000
Hedge Unwind Agreements and Warrant Unwind Agreements | Convertible Debt | Convertible Notes Payable
Debt Instrument [Line Items]
Shares received from dealer counterparties | shares	300,000
Maximum
Debt Instrument [Line Items]
Conversion of convertible notes, shares issued upon conversion | shares				7,981,422
Revolving Credit Facility
Debt Instrument [Line Items]
Proceeds from long-term lines of credit		246,000,000		$ 265,000,000	246,000,000
Repayments of Lines of Credit				451,000,000
Standby Letters of Credit
Debt Instrument [Line Items]
Line of credit facility amount outstanding				$ 3,200,000	3,800,000
Convertible Senior Subordinated Notes [Member]
Debt Instrument [Line Items]
Convertible subordinated debt										$ 400,000,000
Interest rate										3.875%
Number of trading days				20 days
Number of consecutive trading days				30 days
Percentage of conversion price of applicable trading day				130.00%
Number of business days				5 days
Principal amount of convertible notes				$ 1,000
Percentage of the product of the last reported sale price of the common stock (less than)				98.00%
Convertible notes conversion rate				16.3084
Conversion price, per share (in dollars per share) | $ / shares				$ 61.32
Conversion of convertible notes, shares issued upon conversion | shares				400,000
Settlement and exchange of convertible notes with common or treasury stock				$ 44,400,000	$ 400,000
Extinguishment of debt, amount				44,400,000
Loss on extinguishment of debt				$ 3,000,000
Securitization Program
Debt Instrument [Line Items]
Interest rate				1.52%	1.18%
Maximum amount available under receivable securitization				$ 50,000,000
Securitization program, at a rate of 1.52% at December 31, 2016 and 1.18% at December 31, 2015				$ 50,000,000	$ 43,300,000
New Senior Credit Facility | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum amount available for borrowing			$ 850,000,000
Federal funds effective rate plus			0.50%
Prime rate or one month LIBOR plus			1.00%
Senior credit facility interest rate				2.27%
Leverage ratio, required			4.0
Interest coverage ratio, required			3.50
Liquidity minimum threshold			$ 400,000,000
Leverage ratio				2.00
Interest coverage ratio				11.22
New Senior Credit Facility | Line of Credit | Revolving Credit Facility | Prime Rate | Minimum
Debt Instrument [Line Items]
Applicable margin			0.25%
New Senior Credit Facility | Line of Credit | Revolving Credit Facility | Prime Rate | Maximum
Debt Instrument [Line Items]
Applicable margin			1.00%
New Senior Credit Facility | Line of Credit | Revolving Credit Facility | LIBOR
Debt Instrument [Line Items]
Senior credit facility interest rate				0.77%
New Senior Credit Facility | Line of Credit | Revolving Credit Facility | LIBOR | Minimum
Debt Instrument [Line Items]
Applicable margin			1.25%
New Senior Credit Facility | Line of Credit | Revolving Credit Facility | LIBOR | Maximum
Debt Instrument [Line Items]
Applicable margin			2.00%
New Senior Credit Facility | Line of Credit | Revolving Credit Facility | Rate Spread
Debt Instrument [Line Items]
Senior credit facility interest rate				1.50%
5.25% Senior Notes due 2024 | Senior Notes
Debt Instrument [Line Items]
Interest rate				5.25%	5.25%			5.25%
Senior notes				$ 250,000,000	$ 250,000,000			$ 250,000,000
Ownership percentage of subsidiaries				100.00%
Basis spread on variable rate				0.50%
5.25% Senior Notes due 2024 | Senior Notes | Minimum
Debt Instrument [Line Items]
Declining percent of redemption price to principal amount				0.875%
5.25% Senior Notes due 2024 | Senior Notes | Maximum
Debt Instrument [Line Items]
Percent of redemption price to principal amount				102.625%
Declining percent of redemption price to principal amount				100.00%
5.25% Senior Notes due 2024 | Senior Notes | Debt Instrument Redemption Prior To June 15, 2019
Debt Instrument [Line Items]
Percent of redemption price to principal amount on redemption				100.00%
Make whole premium as percentage of principal amount of notes subject to redemption				1.00%
5.25% Senior Notes due 2024 | Senior Notes | Debt Instrument Redemption Prior To June 15 2017
Debt Instrument [Line Items]
Percent of redemption price to principal amount on redemption				105.25%
Percent of principal amount of notes redeemable				35.00%
4.875% Senior Notes due 2026 | Senior Notes
Debt Instrument [Line Items]
Interest rate							4.875%
Senior notes				$ 400,000,000	$ 0		$ 400,000,000
Basis spread on variable rate				0.50%
Fee amount							$ 6,500,000
4.875% Senior Notes due 2026 | Senior Notes | Minimum
Debt Instrument [Line Items]
Declining percent of redemption price to principal amount				0.813%
4.875% Senior Notes due 2026 | Senior Notes | Maximum
Debt Instrument [Line Items]
Percent of redemption price to principal amount				102.438%
Declining percent of redemption price to principal amount				100.00%
4.875% Senior Notes due 2026 | Senior Notes | Debt Instrument Redemption Prior To June 1, 2021
Debt Instrument [Line Items]
Percent of redemption price to principal amount on redemption				100.00%
Make whole premium as percentage of principal amount of notes subject to redemption				1.00%
4.875% Senior Notes due 2026 | Senior Notes | Debt Instrument Redemption Prior To June 1, 2019
Debt Instrument [Line Items]
Percent of redemption price to principal amount on redemption				104.875%
Percent of principal amount of notes redeemable				40.00%
6.875% Senior Subordinated Notes Due 2019 | Senior Notes
Debt Instrument [Line Items]
Interest rate				4.875%	4.875%				6.875%
Senior subordinated notes									$ 250,000,000
Prepayment of debt, make-whole amount		$ 8,600,000
Write off of deferred debt issuance cost					$ 1,900,000