Basis of Presentation - Summary of Impact of Adopting New Standards on Condensed Consolidated Balance Sheets (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Apr. 01, 2018	Mar. 31, 2018
Disaggregation Of Revenue [Line Items]
Accounts receivable, net	$ 236,085		$ 267,665
Inventories	220,018		196,307
Prepaid expenses and other current assets	102,977		77,135
Other assets	742,158		686,134
Accrued liabilities	252,312		263,676
Retained earnings	277,831		$ 285,960
ASC 606 [Member]
Disaggregation Of Revenue [Line Items]
Accounts receivable, net		$ 262,001
Inventories		197,930
Prepaid expenses and other current assets		95,233
Other assets		703,872
Accrued liabilities		269,592
Retained earnings		311,839
Impact of ASC 606 [Member] | ASC 606 [Member]
Disaggregation Of Revenue [Line Items]
Accounts receivable, net	5,729	(5,664)
Inventories	(2,275)	1,623
Prepaid expenses and other current assets	(19,085)	18,098
Other assets	(21,495)	17,738
Accrued liabilities	(6,356)	5,916
Retained earnings	(30,770)	$ 25,879
Historical Accounting Method [Member] | ASC 606 [Member]
Disaggregation Of Revenue [Line Items]
Accounts receivable, net	241,814
Inventories	217,743
Prepaid expenses and other current assets	83,892
Other assets	720,663
Accrued liabilities	245,956
Retained earnings	$ 247,061