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v3.6.0.2

Consolidated Statements of Capital - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Mar. 31, 2014 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |  |  |  |  |  |
Beginning balance |  | $ 1,372,686 |  | $ 1,381,097 |  | $ 1,003,185 | $ 1,372,686 | $ 1,381,097 | $ 1,003,185
Issuance of OP units, net of costs |  |  |  |  |  |  | 611,206 |  | 379,328
Redemption of operating partnership units |  |  |  |  |  |  |  |  | (829)
Equity component of senior unsecured notes |  |  |  |  |  |  |  |  | 13,204
Equity compensation |  |  |  |  |  |  | 9,729 | 5,483 | 3,720
Distributions |  |  |  |  |  |  | (114,954) | (91,900) | (87,721)
Net income | $ 33,008 | $ 16,705 | $ 19,370 | $ 7,888 | $ 10,964 | $ 11,231 | 107,250 | 79,928 | 70,210
Unrealized loss on valuation of interest rate swap agreements |  |  |  |  |  |  | (3,054) | (1,922) | 0
Ending balance | $ 1,982,863 |  | $ 1,372,686 |  | $ 1,381,097 |  | $ 1,982,863 | $ 1,372,686 | $ 1,381,097
General Partner [Member] | Series PR Operating Partnership Units [Member] |  |  |  |  |  |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |  |  |  |  |  |
Beginning balance (in units) |  | 120,023,000 |  | 107,191,000 |  | 95,606,000 | 120,023,000 | 107,191,000 | 95,606,000
Beginning balance |  | $ 524,729 |  | $ 468,638 |  | $ 385,158 | $ 524,729 | $ 468,638 | $ 385,158
Issuance of OP units, net (in units) |  |  |  |  |  |  | 29,611,000 |  | 2,666,000
Issuance of OP units, net of costs |  |  |  |  |  |  | $ 611,206 |  | $ 44,398
Equity component of senior unsecured notes |  |  |  |  |  |  |  |  | $ 4,857
Conversion of operating partnership units to shares (in units) |  |  |  |  |  |  | 6,167,000 | 12,818,000 | 8,924,000
Conversion of operating partnership units to shares |  |  |  |  |  |  | $ 23,678 | $ 62,070 | $ 40,701
Equity compensation (in units) |  |  |  |  |  |  | 40,000 | 14,000 | (5,000)
Equity compensation |  |  |  |  |  |  | $ 357 | $ 296 | $ 455
Distributions |  |  |  |  |  |  | (55,812) | (39,183) | (33,598)
Net income |  |  |  |  |  |  | 51,456 | 33,730 | $ 26,667
Unrealized loss on valuation of interest rate swap agreements |  |  |  |  |  |  | $ (1,478) | $ (822) |
Ending balance (in units) | 155,841,000 |  | 120,023,000 |  | 107,191,000 |  | 155,841,000 | 120,023,000 | 107,191,000
Ending balance | $ 1,154,136 |  | $ 524,729 |  | $ 468,638 |  | $ 1,154,136 | $ 524,729 | $ 468,638
Limited Partner [Member] | Series PR Operating Partnership Units [Member] |  |  |  |  |  |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |  |  |  |  |  |
Beginning balance (in units) |  | 93,863,000 |  | 100,211,000 |  | 84,589,000 | 93,863,000 | 100,211,000 | 84,589,000
Beginning balance |  | $ 809,901 |  | $ 868,163 |  | $ 571,763 | $ 809,901 | $ 868,163 | $ 571,763
Issuance of OP units, net (in units) |  |  |  |  |  |  |  |  | 20,116,000
Issuance of OP units, net of costs |  |  |  |  |  |  |  |  | $ 334,930
Issuance of private perpetual preferred units in exchange for OP units, (in units) |  |  |  |  |  |  |  |  | (559,000)
Issuance of private perpetual preferred units in exchange for OP units |  |  |  |  |  |  |  |  | $ (2,871)
Equity component of senior unsecured notes |  |  |  |  |  |  |  |  | $ 5,172
Conversion of operating partnership units to shares (in units) |  |  |  |  |  |  | (2,657,000) | (6,803,000) | (4,406,000)
Conversion of operating partnership units to shares |  |  |  |  |  |  | $ (22,264) | $ (58,636) | $ (37,693)
Equity compensation (in units) |  |  |  |  |  |  | 1,869,000 | 455,000 | 471,000
Equity compensation |  |  |  |  |  |  | $ 9,372 | $ 5,187 | $ 3,265
Distributions |  |  |  |  |  |  | (37,621) | (32,794) | (31,974)
Net income |  |  |  |  |  |  | 34,977 | 28,678 | $ 25,571
Unrealized loss on valuation of interest rate swap agreements |  |  |  |  |  |  | $ (1,005) | $ (697) |
Ending balance (in units) | 93,075,000 |  | 93,863,000 |  | 100,211,000 |  | 93,075,000 | 93,863,000 | 100,211,000
Ending balance | $ 793,360 |  | $ 809,901 |  | $ 868,163 |  | $ 793,360 | $ 809,901 | $ 868,163
Limited Partner [Member] | Series ES Operating Partnership Units [Member] |  |  |  |  |  |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |  |  |  |  |  |
Beginning balance (in units) |  | 38,262,000 |  | 42,365,000 |  | 46,134,000 | 38,262,000 | 42,365,000 | 46,134,000
Beginning balance |  | $ 22,074 |  | $ 26,488 |  | $ 32,698 | $ 22,074 | $ 26,488 | $ 32,698
Redemption of operating partnership units (in units) |  |  |  |  |  |  |  |  | (39,000)
Redemption of operating partnership units |  |  |  |  |  |  |  |  | $ (604)
Issuance of private perpetual preferred units in exchange for OP units, (in units) |  |  |  |  |  |  |  |  | (529,000)
Issuance of private perpetual preferred units in exchange for OP units |  |  |  |  |  |  |  |  | $ (2,714)
Equity component of senior unsecured notes |  |  |  |  |  |  |  |  | $ 2,253
Conversion of operating partnership units to shares (in units) |  |  |  |  |  |  | (2,534,000) | (4,103,000) | (3,201,000)
Conversion of operating partnership units to shares |  |  |  |  |  |  | $ (1,075) | $ (2,424) | $ (2,185)
Distributions |  |  |  |  |  |  | (14,642) | (13,495) | (15,352)
Net income |  |  |  |  |  |  | 14,140 | 11,792 | $ 12,392
Unrealized loss on valuation of interest rate swap agreements |  |  |  |  |  |  | $ (406) | $ (287) |
Ending balance (in units) | 35,728,000 |  | 38,262,000 |  | 42,365,000 |  | 35,728,000 | 38,262,000 | 42,365,000
Ending balance | $ 20,091 |  | $ 22,074 |  | $ 26,488 |  | $ 20,091 | $ 22,074 | $ 26,488
Limited Partner [Member] | Series 60 Operating Partnership Units [Member] |  |  |  |  |  |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |  |  |  |  |  |
Beginning balance (in units) |  | 10,318,000 |  | 11,546,000 |  | 12,570,000 | 10,318,000 | 11,546,000 | 12,570,000
Beginning balance |  | $ 5,366 |  | $ 6,567 |  | $ 8,866 | $ 5,366 | $ 6,567 | $ 8,866
Redemption of operating partnership units (in units) |  |  |  |  |  |  |  |  | (7,000)
Redemption of operating partnership units |  |  |  |  |  |  |  |  | $ (109)
Issuance of private perpetual preferred units in exchange for OP units, (in units) |  |  |  |  |  |  |  |  | (300,000)
Issuance of private perpetual preferred units in exchange for OP units |  |  |  |  |  |  |  |  | $ (1,539)
Equity component of senior unsecured notes |  |  |  |  |  |  |  |  | $ 606
Conversion of operating partnership units to shares (in units) |  |  |  |  |  |  | (617,000) | (1,228,000) | (717,000)
Conversion of operating partnership units to shares |  |  |  |  |  |  | $ (218) | $ (654) | $ (451)
Distributions |  |  |  |  |  |  | (3,985) | (3,665) | (4,167)
Net income |  |  |  |  |  |  | 3,827 | 3,196 | $ 3,361
Unrealized loss on valuation of interest rate swap agreements |  |  |  |  |  |  | $ (110) | $ (78) |
Ending balance (in units) | 9,701,000 |  | 10,318,000 |  | 11,546,000 |  | 9,701,000 | 10,318,000 | 11,546,000
Ending balance | $ 4,880 |  | $ 5,366 |  | $ 6,567 |  | $ 4,880 | $ 5,366 | $ 6,567
Limited Partner [Member] | Series 250 Operating Partnership Units [Member] |  |  |  |  |  |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |  |  |  |  |  |
Beginning balance (in units) |  | 5,106,000 |  | 5,790,000 |  | 6,578,000 | 5,106,000 | 5,790,000 | 6,578,000
Beginning balance |  | $ 2,612 |  | $ 3,237 |  | $ 4,700 | $ 2,612 | $ 3,237 | $ 4,700
Redemption of operating partnership units (in units) |  |  |  |  |  |  |  |  | (7,000)
Redemption of operating partnership units |  |  |  |  |  |  |  |  | $ (116)
Issuance of private perpetual preferred units in exchange for OP units, (in units) |  |  |  |  |  |  |  |  | (172,000)
Issuance of private perpetual preferred units in exchange for OP units |  |  |  |  |  |  |  |  | $ (880)
Equity component of senior unsecured notes |  |  |  |  |  |  |  |  | $ 316
Conversion of operating partnership units to shares (in units) |  |  |  |  |  |  | (359,000) | (684,000) | (609,000)
Conversion of operating partnership units to shares |  |  |  |  |  |  | $ (121) | $ (356) | $ (372)
Distributions |  |  |  |  |  |  | (1,958) | (1,827) | (2,154)
Net income |  |  |  |  |  |  | 1,914 | 1,596 | $ 1,743
Unrealized loss on valuation of interest rate swap agreements |  |  |  |  |  |  | $ (55) | $ (38) |
Ending balance (in units) | 4,747,000 |  | 5,106,000 |  | 5,790,000 |  | 4,747,000 | 5,106,000 | 5,790,000
Ending balance | $ 2,392 |  | $ 2,612 |  | $ 3,237 |  | $ 2,392 | $ 2,612 | $ 3,237
Private Perpetual Preferred Units [Member] |  |  |  |  |  |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |  |  |  |  |  |
Beginning balance (in units) |  | 1,560,000 |  | 1,560,000 |  | 0 | 1,560,000 | 1,560,000 | 0
Beginning balance |  | $ 8,004 |  | $ 8,004 |  | $ 0 | $ 8,004 | $ 8,004 | $ 0
Issuance of private perpetual preferred units in exchange for OP units, (in units) |  |  |  |  |  |  |  |  | (1,560,000)
Issuance of private perpetual preferred units in exchange for OP units |  |  |  |  |  |  |  |  | $ 8,004
Distributions |  |  |  |  |  |  | (936) | (936) | (476)
Net income |  |  |  |  |  |  | 936 | 936 | $ 476
Unrealized loss on valuation of interest rate swap agreements |  |  |  |  |  |  | $ 0 | $ 0 |
Ending balance (in units) | 1,560,000 |  | 1,560,000 |  | 1,560,000 |  | 1,560,000 | 1,560,000 | 1,560,000
Ending balance | $ 8,004 |  | $ 8,004 |  | $ 8,004 |  | $ 8,004 | $ 8,004 | $ 8,004

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