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Derivatives (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Dec. 31, 2016
Derivative [Line Items] |  |  |  |  |
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net | $ (3,805) | $ (9,846) | $ (3,873) | $ (26,631) |
Amount reclassified from accumulated other comprehensive loss | (3,071) | $ (2,500) | $ (5,726) | $ (4,952) |
Document Fiscal Year Focus |  |  | 2017 |  |
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months |  |  | $ 9,800 |  |
Derivative @ 2.36600% 37.5K [Member] [Domain] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Derivative, Inception Date |  |  | Jun. 02, 2017 |  |
Derivative, Maturity Date |  |  | Jun. 02, 2027 |  |
Derivative, Notional Amount | $ 37,500 |  | $ 37,500 |  |
Derivative, Description of Variable Rate Basis |  |  | 1 Month LIBOR with Floor |  |
Derivative, Fixed Interest Rate | 2.366% |  | 2.366% |  |
Interest Rate Cash Flow Hedge Liability at Fair Value | $ (497) |  | $ (497) |  | $ (580)
Derivative $33M Swap [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Derivative, Inception Date |  |  | Dec. 01, 2016 |  |
Derivative, Maturity Date |  |  | Nov. 01, 2023 |  |
Derivative, Notional Amount | $ 33,000 |  | $ 33,000 |  |
Derivative, Description of Variable Rate Basis |  |  | 1 Month LIBOR |  |
Derivative, Fixed Interest Rate | 1.49% |  | 1.49% |  |
Interest Rate Cash Flow Hedge Asset at Fair Value | $ (879) |  | $ (879) |  | (1,013)
Derivatives 200K @ 1.04770% and 65K @ 1.07000% [Member] [Domain] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Derivative, Inception Date |  |  | Aug. 01, 2016 |  |
Derivative, Maturity Date |  |  | Jan. 05, 2022 |  |
Derivative, Notional Amount | $ 265,000 |  | $ 265,000 |  |
Derivative, Description of Variable Rate Basis |  |  | 1 Month LIBOR with Floor |  |
Derivative, Fixed Interest Rate | 1.053% |  | 1.053% |  |
Interest Rate Cash Flow Hedge Asset at Fair Value | $ (8,979) |  | $ (8,979) |  | (9,889)
Derivative $300M Term [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Derivative, Inception Date |  |  | Apr. 03, 2017 |  |
Derivative, Maturity Date |  |  | Dec. 02, 2020 |  |
Derivative, Notional Amount | $ 300,000 |  | $ 300,000 |  |
Derivative, Description of Variable Rate Basis |  |  | 1 Month LIBOR with Floor |  |
Derivative, Fixed Interest Rate | 1.824% |  | 1.824% |  |
Interest Rate Cash Flow Hedge Liability at Fair Value | $ (1,167) |  | $ (1,167) |  | 0
Swap [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months |  |  | $ 8,400 |  |
Derivative @ 1.30250% 20.0M [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Derivative, Inception Date |  |  | Apr. 07, 2016 |  |
Derivative, Maturity Date |  |  | Apr. 01, 2023 |  |
Derivative, Notional Amount | $ 20,000 |  | $ 20,000 |  |
Derivative, Description of Variable Rate Basis |  |  | 1 Month LIBOR |  |
Derivative, Fixed Interest Rate | 1.3025% |  | 1.3025% |  |
Interest Rate Cash Flow Hedge Asset at Fair Value | $ (641) |  | $ (641) |  | (720)
Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Interest Rate Cash Flow Hedge Asset at Fair Value | (10,499) |  | (10,499) |  | (11,622)
Interest Rate Cash Flow Hedge Liability at Fair Value | (1,664) |  | (1,664) |  | (580)
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Interest Rate Cash Flow Hedge Asset at Fair Value | (10,499) |  | (10,499) |  | (11,622)
Interest Rate Cash Flow Hedge Liability at Fair Value | (1,664) |  | (1,664) |  | (580)
Interest Rate Cash Flow Hedge Derivative at Fair Value, Net | $ 8,835 |  | $ 8,835 |  | $ 11,042

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