Annual report pursuant to Section 13 and 15(d)

Dividends (Detail)

v3.19.3.a.u2
Dividends (Detail) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dividend Declared [Line Items]      
Amount per Share of Common Stock $ 1.36 $ 1.28 $ 1.16
Total Dividends [1] $ 159,951 $ 150,116 $ 135,637
First Quarter Dividend      
Dividend Declared [Line Items]      
Declaration Date Feb. 23, 2019 Feb. 23, 2018 Feb. 23, 2017
Record Date Mar. 08, 2019 Mar. 08, 2018 Mar. 08, 2017
Payable Date Mar. 22, 2019 Mar. 22, 2018 Mar. 20, 2017
Amount per Share of Common Stock $ 0.34 $ 0.32 $ 0.29
Total Dividends [1] $ 39,905 $ 37,471 $ 33,912
Second Quarter Dividend      
Dividend Declared [Line Items]      
Declaration Date May 24, 2019 May 25, 2018 May 25, 2017
Record Date Jun. 10, 2019 Jun. 08, 2018 Jun. 08, 2017
Payable Date Jun. 24, 2019 Jun. 22, 2018 Jun. 22, 2017
Amount per Share of Common Stock $ 0.34 $ 0.32 $ 0.29
Total Dividends [1] $ 40,012 $ 37,523 $ 33,904
Third Quarter Dividend      
Dividend Declared [Line Items]      
Declaration Date Aug. 16, 2019 Aug. 23, 2018 Aug. 10, 2017
Record Date Sep. 04, 2019 Sep. 04, 2018 Aug. 31, 2017
Payable Date Sep. 18, 2019 Sep. 18, 2018 Sep. 13, 2017
Amount per Share of Common Stock $ 0.34 $ 0.32 $ 0.29
Total Dividends [1] $ 40,020 $ 37,530 $ 33,911
Fourth Quarter Dividend      
Dividend Declared [Line Items]      
Declaration Date Nov. 22, 2019 Nov. 15, 2018 Nov. 17, 2017
Record Date Dec. 04, 2019 Dec. 04, 2018 Dec. 01, 2017
Payable Date Dec. 18, 2019 Dec. 18, 2018 Dec. 15, 2017
Amount per Share of Common Stock $ 0.34 $ 0.32 $ 0.29
Total Dividends [1] $ 40,014 $ 37,592 $ 33,910
[1] Of the dividends recorded during 2017, 2018 and 2019, $558, $624 and $670, respectively, were related to outstanding restricted stock units and will not be paid until such units vest. See Note 16.