Debt instrument discount rate.

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Debt Instrument Maximum Borrowing Capacity.

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Debt instrument prepayment penalty percentage.

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Interest coverage ratio.

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Minimum unencumbered liquid assets.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Cash
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Identification of the lender and information about a contractual promise to repay a short-term or long-term obligation, which includes borrowings under lines of credit, notes payable, commercial paper, bonds payable, debentures, and other contractual obligations for payment. This may include rationale for entering into the arrangement, significant terms of the arrangement, which may include amount, repayment terms, priority, collateral required, debt covenants, borrowing capacity, call features, participation rights, conversion provisions, sinking-fund requirements, voting rights, basis for conversion if convertible and remarketing provisions. The description may be provided for individual debt instruments, rational groupings of debt instruments, or by debt in total.

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Face (par) amount of debt instrument at time of issuance.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
-Section 55
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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No definition available.

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The cash inflow from borrowings supported by a written promise to pay an obligation that is collateralized (backed by pledge, mortgage or other lien in the entity's assets).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

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Carrying amount of financial assets accounted for as secured borrowings recognized in the transferor's statement of financial position at the end of each period presented.

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Indebtedness - Additional Information (Details) - USD ($)	1 Months Ended		3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Jan. 31, 2016	Dec. 31, 2015	Jul. 31, 2015
Debt Instrument [Line Items]
Debt maturity date			Sep. 30, 2022
Cash			$ 203,791,000	$ 206,364,000	$ 208,313,000		$ 203,864,000
Interest Rate			4.03%
Loan outstanding balance			$ 949,275,000	898,023,000
Secured Debt
Debt Instrument [Line Items]
Aggregate amount of debt			35,300,000
Lines of Credit
Debt Instrument [Line Items]
Line of credit, outstanding borrowing capacity			$ 247,400,000
Debt maturity date			Apr. 30, 2018
Debt instrument term			3 years
Lines of Credit \| Syndicated Working Capital Facility
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity			$ 250,000,000
Minimum unencumbered liquid assets to be maintained			$ 25,000,000
Lines of Credit \| Syndicated Working Capital Facility \| Minimum
Debt Instrument [Line Items]
Interest coverage ratio			200.00%
Syndicated Term Loans
Debt Instrument [Line Items]
Maximum borrowing capacity						$ 340,000,000
Syndicated Term Loans \| Line Of Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity						310,000,000
Syndicated Term Loans \| Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity						23,000,000
Syndicated Term Loans \| Letter of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity						$ 7,000,000
Syndicated Term Loans \| Credit Facility Agreements with Syndicate of Banks
Debt Instrument [Line Items]
Debt maturity date			Dec. 31, 2021
Maximum borrowing capacity	$ 195,400,000
Syndicated Term Loans \| Credit Facility Agreements with Syndicate of Banks \| Subordinated Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity	24,000,000
Syndicated Term Loans \| Credit Facility Agreements with Syndicate of Banks \| Working Capital Revolver Commitment
Debt Instrument [Line Items]
Maximum borrowing capacity	5,000,000
Syndicated Term Loans \| Credit Facility Agreements with Syndicate of Banks \| Senior Secured Revolving Letter Of Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 7,900,000
Syndicated Term Loans \| Credit Facility Agreements with Syndicate of Banks \| Minimum \| Subordinated Term Loan
Debt Instrument [Line Items]
Debt prepayment penalty percentage	0.00%
Syndicated Term Loans \| Credit Facility Agreements with Syndicate of Banks \| Maximum \| Subordinated Term Loan
Debt Instrument [Line Items]
Debt prepayment penalty percentage	2.00%
Syndicated Term Loans \| Aggregation Facility \| Senior Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 158,500,000
Secured, Non-recourse Loan Agreement
Debt Instrument [Line Items]
Aggregate amount of debt			$ 12,900,000		$ 24,500,000
Debt instrument, Description			In March 2016, a subsidiary of the Company entered into a $24.5 million secured, non-recourse loan agreement. The loan will be repaid through cashflows from a lease pass-through arrangement previously entered into by the Company.
Bank Term Loans
Debt Instrument [Line Items]
Aggregate amount of debt		$ 38,000,000
Notes Payable
Debt Instrument [Line Items]
Debt maturity date			Dec. 31, 2018
Proceeds from issuance of senior secured notes		$ 27,200,000
Notes Payable \| Payment-in-kind (?PIK?)
Debt Instrument [Line Items]
Interest Rate		12.00%
Loan outstanding balance			$ 10,600,000	9,500,000
Solar Asset Backed Securities Class A
Debt Instrument [Line Items]
Aggregate amount of debt								$ 100,000,000
Solar Asset Backed Securities Class B
Debt Instrument [Line Items]
Aggregate amount of debt								$ 11,000,000
Asset Backed Securities
Debt Instrument [Line Items]
Secured Borrowings Assets Carrying Amount			$ 179,700,000	$ 181,800,000
Debt instrument discount rate			0.08%
Net of fees from proceeds from debt instrument			$ 7,300,000