Quarterly report pursuant to Section 13 or 15(d)

Note Payable (Details)

v3.7.0.1
Note Payable (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Mar. 31, 2017
Jun. 30, 2017
Dec. 31, 2016
2016 Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate   1.00%  
2016 Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate   1.50%  
2016 Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate   2.45%  
2016 Term Loan [Member] | Base Rate [Member] | Minimum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate   0.50%  
2016 Term Loan [Member] | Base Rate [Member] | Maximum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate   1.45%  
2016 Term Loan [Member] | Federal Funds Effective Swap Rate [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate   0.50%  
Unsecured Debt [Member] | 2016 Term Loan [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Term     7 years
Debt Instrument, Face Amount     $ 150,000,000
Debt Instrument, Maturity Date     Jul. 21, 2023
Debt Instrument, Deferred Draw Period     6 months
Unsecured Long-term Debt, Noncurrent     $ 100,000,000
Proceeds from Issuance of Unsecured Debt $ 50,000,000.0    
Derivative, Fixed Interest Rate   2.90%  
Unsecured Debt [Member] | 2016 Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate   1.65%  
2015 Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Description of Variable Rate Basis   P1M