Transfers of Financial Assets - Additional Information (Detail) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Transfer of Financial Assets Accounted for as Sales [Line Items]
Aggregate face value of receivables sold	$ 617,000,000	$ 208,700,000
Cash proceeds from receivables	616,700,000	208,500,000
Proceeds from customers	481,400,000	117,900,000
Repurchase of accounts receivables sold	51,200,000	$ 11,200,000
Proceeds from other current liabilities	42,700,000		$ 103,500,000
Incremental operating cash inflows	12,000,000
Revolving Credit Facility [Member]
Transfer of Financial Assets Accounted for as Sales [Line Items]
Current maximum funding limit	350,000,000
U.S and Japan Revolving Arrangements [Member]
Transfer of Financial Assets Accounted for as Sales [Line Items]
Maximum exposures to loss associated	28,700,000		22,900,000
Derecognized net receivables outstanding amount	$ 323,400,000		$ 261,200,000