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Borrowings - Additional Information (Detail) - USD ($) | May 27, 2020 | Apr. 05, 2019 | Nov. 20, 2017 | May 16, 2016 | Dec. 31, 2020 | Mar. 30, 2020 | Mar. 29, 2020 | Dec. 31, 2019
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Securitization Program |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Interest rate |  |  |  |  | 1.24% |  |  | 2.51%
Long-term line of credit |  |  |  |  | $ 75,000,000.0 |  |  | $ 50,000,000.0
Maximum amount available under receivable securitization |  |  |  |  |  | $ 75,000,000 | $ 50,000,000 |
Securitization program, at a rate of 1.24% at December 31, 2020 and 2.51% at December 31, 2019 |  |  |  |  | $ 75,000,000 |  |  | $ 50,000,000
Credit Agreement |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Interest rate |  | 2.00% |  |  |  |  |  |
Credit Agreement | LIBOR | Minimum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 1.25% |  |  |  |  |  |
Credit Agreement | LIBOR | Maximum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 2.00% |  |  |  |  |  |
Credit Agreement | Federal Funds |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 0.50% |  |  |  |  |  |
Credit Agreement | Adjusted LIBOR |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 1.00% |  |  |  |  |  |
Credit Agreement | Adjusted LIBOR | Minimum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 0.125% |  |  |  |  |  |
Credit Agreement | Adjusted LIBOR | Maximum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 100.00% |  |  |  |  |  |
Credit Agreement | Revolving Credit Facility |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt, term |  | 5 years |  |  |  |  |  |
Maximum amount available for borrowing |  | $ 1,000,000,000.0 |  |  |  |  |  |
Credit Agreement | Term Loan |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Maximum amount available for borrowing |  | $ 700,000,000.0 |  |  |  |  |  |
Second Amended and Restated Credit Agreement |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Leverage ratio, required |  | 4.50 |  |  |  |  |  |
Interest coverage ratio, required |  | 3.50 |  |  |  |  |  |
4.875% Senior Notes due 2026 | Senior Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  | 0.50% |  |  |  |
Interest rate |  |  |  | 4.875% |  |  |  |
Senior notes |  |  |  | $ 400,000,000.0 |  |  |  |
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% |  |  |  |
Makewhole premium as percentage of principal amount of notes subject to redemption |  |  |  | 1.00% |  |  |  |
4.625% Senior Notes due 2027 | Minimum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Declining percent of redemption price to principal amount |  |  | 0.771% |  |  |  |  |
4.625% Senior Notes due 2027 | Maximum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Declining percent of redemption price to principal amount |  |  | 100.00% |  |  |  |  |
4.625% Senior Notes due 2027 | Senior Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  | 0.50% |  |  |  |  |
Interest rate |  |  | 4.625% |  | 4.625% |  |  | 4.625%
Senior notes |  |  | $ 500,000,000.0 |  | $ 500,000,000 |  |  | $ 500,000,000
Debt issuance, line of credit |  |  | $ 7,900,000 |  |  |  |  |
4.625% Senior Notes due 2027 | Senior Notes | Maximum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Percent of redemption price to principal amount |  |  | 102.313% |  |  |  |  |
4.625% Senior Notes due 2027 | Senior Notes | Debt Instrument, Redemption, Period One |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Percent of redemption price to principal amount on redemption |  |  | 100.00% |  |  |  |  |
Makewhole premium as percentage of principal amount of notes subject to redemption |  |  | 1.00% |  |  |  |  |
4.625% Senior Notes due 2027 | Senior Notes | Debt Instrument, Redemption, Period Two |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Percent of redemption price to principal amount on redemption |  |  | 104.625% |  |  |  |  |
Percent of principal amount of notes redeemable |  |  | 40.00% |  |  |  |  |
4.25% Senior Notes due 2028 | Minimum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Declining percent of redemption price to principal amount | 1.0625% |  |  |  |  |  |  |
4.25% Senior Notes due 2028 | Maximum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Declining percent of redemption price to principal amount | 100.00% |  |  |  |  |  |  |
4.25% Senior Notes due 2028 | Senior Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Basis spread on variable rate | 0.50% |  |  |  |  |  |  |
Interest rate | 4.25% |  |  |  | 4.25% |  |  | 4.25%
Senior notes | $ 500,000,000.0 |  |  |  | $ 500,000,000 |  |  | $ 0
Percent of redemption price to principal amount | 102.125% |  |  |  |  |  |  |
Percent of redemption price to principal amount on redemption | 100.00% |  |  |  |  |  |  |
Debt issuance, line of credit | $ 8,500,000 |  |  |  |  |  |  |
4.25% Senior Notes due 2028 | Senior Notes | Debt Instrument, Redemption, Period Three |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Percent of redemption price to principal amount on redemption | 104.25% |  |  |  |  |  |  |
Makewhole premium as percentage of principal amount of notes subject to redemption | 1.00% |  |  |  |  |  |  |
Percent of principal amount of notes redeemable | 40.00% |  |  |  |  |  |  |

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- Definition Amount, before accumulated amortization, of debt issuance costs related to line of credit arrangements. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section S45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68176171&loc=SL68176184-208336 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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